FIELD OF INVENTION
[0001] The embodiment herein generally relates to the field of batter vending machine. More specifically, the invention provides an apparatus for vending fresh batter instantly within few minutes thereby to eliminate long process of preparing the batter or getting a packet from the store automatically. Further, the invention provides a chutney vending unit in the same apparatus for vending instant chutney packets to the user according to the user requirement. BACKGROUND AND PRIOR ART
[0002] In south India, Idli/Dosa is a traditional breakfast, especially in Tamil Nadu and neighboring states. It is easy to prepare if the batter is ready and get digested easily for old aged person and kids. The batter consisting of fermented black lentils or black gram and rice. The fermentation process can break down the starches so that they are more readily metabolized by the body. But preparing the batter may take time. [0003] However, in today's fast paced world people in the urban areas need almost everything at their door step. People can get idli/dosa batter packet at stores, but for single order no one deliver the packet at doorstep. If the batter can be vended at doorstep means anybody can easily buy. The batter vender cannot sit at each home to vend the batter. Further, the batter may not be fresh if it is prepared manually and kept at refrigerator.
[0004] In the prior art, there are idly batter-making machines available but the machine cannot vend the batter to the user by itself. It requires human intervention for dispensing batter according to the amount paid by the user. Further, the machines cannot get cleaned automatically and needs human assistance. In addition to that, instant chutney dispensing machines for the idli or dosa is also not available so far. [0005] Therefore there is a need to develop an apparatus for vending fresh batter instantly within few minutes automatically. Further, there is a need to develop an

apparatus for vending freshly mixed idli and /or dosa batter along with a chutney-vending unit for vending instant chutney packets to the user according to the user requirement.
OBJECTS OF THE INVENTION
[0006] Some of the objects of the present disclosure are described herein below: [0007] A main object of the present invention is to provide an apparatus for vending fresh batter instantly within few minutes thereby to eliminate long process of preparing the batter or getting a packet from the store.
[0008] Another object of the present invention is to provide an apparatus for vending instant chutney packets or sachets to the user according to the user requirement. [0009] Still another object of the present invention is to provide an apparatus for vending freshly mixed idli and/or dosa batter in hygienic manner to the user after getting payment from the user.
[00010] Yet another object of the present invention is to provide an apparatus for vending freshly mixed idli and/or dosa batter that can be controlled remotely through computer or GPRS/GSM devices using an application.
[00011] Another object of the present invention is to provide an apparatus for vending freshly mixed idli and/or dosa batter without much human intervention in the batter preparation process and apparatus cleaning process.
[00012] Another object of the present invention is to provide an apparatus for vending freshly mixed idli and/or dosa batter that can provide alert messages to an admin in case of any error or out of stock of the ingredients.
[00013] The other objects and advantages of the present invention will be apparent from the following description when read in conjunction with the accompanying drawings, which are incorporated for illustration of preferred embodiments of the present invention and are not intended to limit the scope thereof.

SUMMARY OF THE INVENTION
[00014] In view of the foregoing, an embodiment herein provides an apparatus for vending freshly mixed idly and dosa batter based on user requirement. According to an embodiment, the apparatus for vending freshly mixed idly and dosa batter comprises of: at least one hopper, a mixing chamber, at least a screw conveyor, at least one gear mechanism, at least a motor arrangement, a plurality of a sensor arrangement, a microcontroller provided along with PLC (programmable logic controller), a user interface, a water filter, a dispenser, a drain outlet and a payment interface. The hopper includes at least a compartment with stirrers inside for storing the batter powder. The user interface device provided for allowing the user to give the input. The input can include the amount and type of the batter required and also user identification information. The screw conveyors placed between the compartment and the mixing chamber configured for transferring the batter powder from the compartment to the mixing chamber.
[00015] The water filter attached to the mixing chamber to provide required amount of water to the mixing chamber. The mixing chamber includes an agitator for mixing the batter powder along with the water and thereby forming the fresh batter. [00016] According to an embodiment, the microcontroller along with PLC configured to control the gear mechanism, a plurality of motor arrangement, and a plurality of a sensor arrangement for dispensing fresh batter instantly through the dispenser according to the user input and after receiving payment from the user thereby to eliminate human intervention in batter preparation process. The payment interface provided for receiving payment. Further, the microcontroller along with PLC can also monitor the payment options and cash intake and accordingly communicate information to the user through the user interface. In addition to that, the microcontroller can communicate to admin of the apparatus through wired or wireless communication network. Further, the user interface is provided for receiving user input and payment from the user either directly or through GSM/GPRS device and the user interface can communicate information with the microcontroller provided along with PLC.

[00017] According to an embodiment, one end of the two screw conveyors are attached to the two compartments separately and connected with the gear mechanism. Another end of the two screw conveyors are attached to the mixer with a motorised valve in between. The motorised valve closed after transferring the batter powder from the compartment to the mixer. The two screw conveyors are kept parallel to each other with a predetermined inclination. The gear mechanism is attached with a proximity sensor for controlling the transfer of the batter powder from the compartment to the mixer.
[00018] According to an embodiment, the dispenser is monitored by the sensor arrangement and the dispenser transfers the batter to a vessel through a three-way valve. The mixer can be cleaned by a cleaning cycle and wastewater drained out through the three way valve to the drain outlet. The three-way valve can remain in closed position at the time of cleaning and get opened to drain out the wastewater. The apparatus can be configured to control and monitor remotely through a computer or a mobile device using an application. The apparatus further includes a chutney-vending unit that provides chutney sachet to the user based on user preference. The apparatus further includes a batter container unit that contains plurality of batter containers, wherein the batter container unit configured to move a batter container to dispenser for collecting the batter.
[00019] According to an embodiment, a method for vending fresh batter based on user requirement comprising the steps of: providing input by the user through a user interface, checking availability of the batter powder by an apparatus based on the user input, receiving payment from the user through a payment interface, transferring the batter powder from a compartment to a mixing chamber through a screw conveyor, controlling motor arrangement, gear mechanism and sensor arrangement by a microcontroller to transfer the required amount of the batter powder to the mixing chamber, adding water from a water filter to the mixing chamber, mixing the batter powder and the water in the mixing chamber by an agitator and thereby forming fresh batter, dispensing the fresh batter to a container through a dispenser; cleaning the

mixing chamber by obtaining water from the water filter, and draining out a waste
water from the mixing chamber through a drain outlet.
[00020] These and other aspects of the embodiments herein will be better appreciated
and understood when considered in conjunction with the following description and the
accompanying drawings. It should be understood, however, that the following
descriptions, while indicating preferred embodiments and numerous specific details
thereof, are given by way of illustration and not of limitation. Many changes and
modifications may be made within the scope of the embodiments herein without
departing from the spirit thereof, and the embodiments herein include all such
modifications.
BRIEF DESCRIPTION OF DRAWINGS
[00021] The detailed description is set forth with reference to the accompanying
figures. In the figures, the left-most digit(s) of a reference number identifies the figure
in which the reference number first appears. The use of the same reference numbers in
different figures indicates similar or identical items.
[00022] Fig. 1 illustrates an exemplary block diagram of the apparatus for vending
freshly mixed idli and/or dosa batter instantly, according to an embodiment herein; and
[00023] Fig.2 illustrates a method for vending freshly mixed idli and/or dosa batter
instantly, according to an embodiment herein.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[00024] The embodiments herein and the various features and advantageous details
thereof are explained more fully with reference to the non-limiting embodiments and
detailed in the following description. Descriptions of well-known components and
processing techniques are omitted so as to not unnecessarily obscure the embodiments
herein. The examples used herein are intended merely to facilitate an understanding of
ways in which the embodiments herein may be practiced and to further enable those of
skill in the art to practice the embodiments herein. Accordingly, the examples should
not be construed as limiting the scope of the embodiments herein.

[00025] As mentioned above, there is a need to develop an apparatus for vending freshly mixed idli and/or dosa batter instantly thereby to eliminate long process of preparing the batter. The embodiments herein achieve this by providing an apparatus for vending freshly mixed idli and/or dosa batter instantly and controlled by a microcontroller to vend batter according to the user requirement. Referring now to the drawings, and more particularly to FIGS. 1 through 2, where similar reference characters denote corresponding features consistently throughout the figures, there are shown preferred embodiments.
[00026] Fig. 1 illustrates an exemplary block diagram of the apparatus 100 for vending fresh batter instantly, according to an embodiment. The batter includes but not limited to idly batter, dosa batter and any pancake batters. The apparatus for vending fresh batter instantly comprises of at least one hopper 102, a mixing chamber 111, at least a screw conveyor 105, at least a gear mechanism 104, at least a motor arrangement 109, a plurality of a sensor arrangement 108, a PLC microcontroller or a microcontroller 101, a user interface 106, a water filterl 12, a dispenser 113, a drain outlet 114 and a payment interface. The hopper 102 includes at least a compartment (103A, 103B) with stirrers inside for storing the batter powder. The apparatus 100 further includes a batter container unit (not shown) that contains plurality of batter containers (not shown), wherein the batter container unit configured to move a batter container to dispenser for collecting the batter at the time of dispensing of batter. [00027] The screw conveyors 105 placed between the compartment 103A, 103B and the mixing chamber 111 configured for transferring the batter powder from the compartment (103A, 103B) to the mixing chamber 111. Further, the two screw conveyors 105 are inclined at predetermined degree of inclination (for example 30 degrees) and parallel to each other which empties into a mixer 111 with a motorised valve in between. The screw conveyor is driven by a Vi FIP AC induction motor with gears 104 between them and another gear 104 that is mounted on the stirrer meshed with the gear 104 on the screw conveyor. One end of the two screw conveyors 105 attached to the two compartments 103 A, 103B separately and connected with the gear

mechanism 104; and wherein another end of the two screw conveyors 105 attached to the mixing chamber 111 with a motorised valve in between. The motorised valve closed after transferring the batter powder from the compartment 103 A, 103B to the mixing chamber 111; wherein the two screw conveyors 105 are kept parallel to each other with a predetermined inclination. Further, motorized valves are provided in between the compartments 103A, 103B and the screw conveyor 105A, 105B to avoid moisture from entering the hopper.
[00028] The user interface device 106 provided for allowing the user to give the input; wherein the input can include the amount and type of the batter required and also include user identification information. The water filter 112 attached to the mixing chamber 111 to provide required amount of water to the mixing chamberlll for preparing the batter. The mixing chamber 111 includes an agitator for mixing the batter powder along with the water and thereby forming the fresh batter. The microcontroller along with PLC 101 is configured to control the gear mechanism 104, the motor arrangement 109, and plurality of sensor arrangement 108 for dispensing fresh batter instantly through the dispenser 113 according to the user input and after receiving payment from the user, wherein the payment interface 107 provided for receiving payment.
[00029]The water filter 112 attached to the mixing chamber 111 provides required amount of water to the mixing chamber 111 through a solenoid valve, wherein the solenoid valve placed between the water filter 112 and the mixing chamber 111.The dispenser 113 transfers the fresh batter to a vessel through a three way valve. The apparatus further includes a drain outlet 114 provided for draining out wastewater from the mixer through the three-way valve after cleaning the mixer 111. The three way valve remains in closed position at the time of cleaning and get opened to drain out the wastewater. The microcontroller along with PLC 101 configured to control and monitor remotely through a computer or a mobile device via wired or wireless communication network using an application.

[00030] According to an embodiment, the representation of the user interface device in the form of a computing system or handheld computing system, within which a set of instructions for causing the device to perform any one or more of the methods described herein may be executed. In various example embodiments, the device operates as a standalone device or may be connected (e.g., networked) to other devices. In a networked deployment, the device may operate in the capacity of a server or a client 105 device in a server -client network environment, or as a peer device in a peer-to-peer (or distributed) network environment. The interface device can include but not limited to mobile telephone, tablet, laptop, personal digital assistant (PDA), smart phone, a web appliance, or any device capable of executing a set of instructions (sequential or otherwise) that specify actions to be taken by that device. Further, while only a single device is illustrated, the term "device" shall also be taken to include any collection of devices that individually or jointly execute a set (or multiple sets) of instructions to perform any one or more of the methods discussed herein. [00031] According to an embodiment, the exemplary user interface device can include a processor or multiple processors (e.g., a central processing unit (CPU), a graphics processing unit (GPU), or both), a main memory, and a static memory, which communicate with each other via a bus. The interface device may further include a display unit (e.g., a liquid crystal display (LCD)). The interface device may also include an alphanumeric input device (e.g., a keyboard), an image capturing device (e.g. camera), a cursor control device (e.g., a mouse), a signal generation device (e.g., a speaker, mic) and a network interface device.
[00032] According to an embodiment, the microcontroller along with PLC 101 configured to control the gear mechanism 104, the motor arrangement 109, and plurality of sensor arrangement 108 for dispensing fresh batter instantly through the dispenser 113 according to the user input and after receiving payment from the user and thereby to eliminate human intervention in batter preparation process. Further, the microcontroller along with PLC can also monitor the payment options and cash intake and accordingly communicate information to the user through the user interface. In

addition to that, the microcontroller can communicate to admin of the apparatus through wireless communication network. The payment interface 107 is provided for receiving payment either directly or through a wired network interface or through GSM/GPRS device.
[00033] According to an embodiment, the user interface device 106 is provided for allowing the user to give the input; wherein the input can include the amount and type of the batter required and could also include user identification information. That is the user is allowed to make payment either in the form of cash or card or RFID or other cardless money transfer. Control signals for the valves 116 are provided by the microcontroller 101, after receiving input from the sensor arrangements 108 at each valve positions. The control signals 115 for the gear mechanism 104, the screw conveyors 1 and 2 (105A, 105B), the filtered water inlet 112 and the motor arrangement 109 is also provided by the microcontroller 101. The filtered water is obtained from a built-in RO water purifier through the filtered water inlet 112. [00034] According to an embodiment, the gear mechanism 104 attached on the screw conveyor has a DOG which is sensed by a proximity sensor for the number of turns which decides the quantity of powder moved to the mixer 111. The gear mechanism 104 attached with a proximity sensor for controlling the transfer of the batter powder from the compartment 103A, 103B to the mixing chamber 111. The gears 104 on the two screw conveyors 105 are on the different planes, so depending on the selection of the batter the motor gear 104 is moved by high torque DC motor to mesh with the corresponding screw conveyor gear 104. The DC motor is coupled to a screw rod, which in turn moves a box nut that is monitored by a proximity sensor. Once the command is received by the microcontroller 101 through push buttons (for Dosa or Idli batter) the DC motor can mesh the motor gear with the corresponding screw conveyor gear.
[00035] According to an embodiment, the motorized valve can open and the Dosa or Idli powder can empty into the mixer 111 where a DC pump can pump the filtered water in right quantity by use of solenoid valve into the mixer 111 where an agitator

can mix the ingredients smoothly at about 9000 RPM. During this process AC motor, DC motor, motorized two-way valve, water inlet 112 (water pump) and the solenoid switch can turn off. The mixture (batter output) is then emptied into a vessel which can be kept below the mixer 111 and monitored using infrared sensors; a smaller motorized three-way valve is used for the dispensing process in the dispenser. [00036] According to an embodiment, once the batter has been dispensed, the three-way valve is brought to the closed position and the water pump along with solenoid is switched on. This process can start the cleaning cycle inside the mixer 111. Once the wash is complete, the water pump and the solenoid are switched off and the three-way valve is moved to the drain position. The water is drained through a built in secondary solenoid valve that is the drain outlet 114. Thus the batter vending process can be completed automatically without much human intervention.
[00037] According to an embodiment, if a command is received for chutney from the user, then the chutney dispensing mechanism or unit is activated by the microcontroller along with PLC 101. The dry chutney powder which is packed in a plurality of sachets is stacked in a container one above the other is pushed at the bottom so that one sachet is pushed at a time using a small high torque DC motor. Once dispensed the motor moves the push plate to the initial position, which ensures the next sachet comes down to the dispensing position. Thus the chutney vending process can be completed automatically without much human intervention.
[00038] According to an embodiment, all the above positions are monitored using Proximity sensors which in turn relay the feedback to the microcontroller along with PLC 101. As the PLC is connected to the GSM/GPRS device the quantity of powder, number of chutney sachets, treated water level, drain clog (if any) and overall health of the machine is monitored remotely in a computer or a mobile phone using software or an application.
[00039] A combined processing unit (CPU) comprising an x86 processor based PC (Personal Computer), an industrial PLC (Programmable Logic Controller) and an USB HID (Human Interface Device). The PC handles all interfaces presented to the user

through a touch enabled LCD monitor and coordinates with the PLC and USB HID to complete a vending cycle. The PC (Personal Computer) is mainly used to provide a seamless touch interface to the user and to connect the machine with the Vending Machine Platform (that co ordinates the payments, maintains stock and validates transactions, etc.). The PC also has processing capabilities and is used to run advertisements on the LCD screen on demand, employ facial recognition to enhance user experience, uses security devices to monitor the safety of the machine, includes an audio processing unit to provide Audio-Visual feedback to the user, and maintains an internal database of analytics of the machine. The PC provides the primary network through a standard Ethernet port (Fibernet connection) that enables all communication between the machine and the server. In case of failure of the primary network, the machine is equipped with USB HID that switches to a secondary and ternary network if necessary.
[00040] The USB HID (Universal Serial Bus - Human Interface Device) is a complex device, which can communicate individually with the PC and PLC, and also act as a bridge between them. It is built with a microcontroller and supporting peripherals that allow for diagnosing the machine for integrity of sensors and actuators. The USB HID is also connected to various sensors and feeds critical data to the PC and PLC during the process cycle. An important feature provided by the USB HID is detecting the presence of a customer. When a human stands in front of the machine at a predetermined distance for a predetermined time, the user interface loads the menu on the screen without input from the user. Another role of the USB HID is to act as a secondary network (Primary network is a standard fibernet connection available at the PC) that handles all the network traffic required to complete the payment and stock-keeping processes. The USB HID includes a GSM/GPRS board, which presents a secondary mode of network connectivity in the absence of the primary connection and facilitates the uninterrupted operation of the machine. Additionally the USB HID also provides a ternary communication channel through standard SMS gateways to ensure

the user's payment is completed always. In absence of all three connectivity options, the machine disables itself with apt messages on the screen (LCD). [00041] The PLC (Programmable Logic Controller) works in tandem with the PC and USB HID to complete the actual vending process. The PLC shares data with both the PC and USB HID to facilitate Vending process, Payment, Machine diagnosis, Audio feedback, etc.
[00042] The machine employs a bill validator calibrated to accept select notes. The Bill validator is interfaced with the PC and is used a payment channel. The Bill validator validates the currency bills required to vend a product. The Bill validator is also used to recharge a user's account (Digital wallet) at the machine using either the touch screen to enter account number or tap the physical NFC tag to identify the user. Once the user is identified and the user wishes to recharge, the Bill validator accepts bills up to a predetermined limit. This amount is updated in the Vending Machine Platform using the primary network. The updated balance is now available to the user to use across all our machines.
[00043] Another payment option is NFC tags (Near Field Communication). These tags hold encoded information in them. An NFC reader is required to read from and write to these tags. The tags will hold user ID and other informations. The NFC reader is interfaced to the PC in the machine. Once the user taps the NFC tag near the NFC reader on the machine, the reader fetches the ID and other information and relays it to the PC. The PC in turn encodes this information, relays it to the Vending Machine Platform using the primary network. The user balance is retrieved, payment is validated and the product is dispensed. NFC is also found embedded in smart phones. In this case, the user taps the phone at the reader and the same payment-vending cycle repeats. The NFC payment differs on special cases where even the user balance is stored and maintained on the NFC tag. In this case there is no balance validation from the server. The balance is retrieved off the tag and updated to the tag near the machine. [00044] The machine is equipped with a touch screen monitor as a user interface. One of the payment options available to the user is standard Payment gateways and digital

wallets. The user uses the touch screen to select the product and is provided with an option to pay using Payment gateways and digital wallets among other payment methods. In this case the user need not be a registered user on the Vending Machine Platform. Registered users can use the proprietary mobile app working in tandem with the Vending Machine Platform. The user scans a QR code (Quick Response Code) displayed on the Touch screen form the mobile app. This QR code has the machine ID and other critical information necessary for the payment encoded in it. Once the user scans the QR code on the mobile app, the mobile app decodes this information, talks to the Vending Machine Platform. The Vending Machine Platform identifies the type of machine the user is present in front of and populates the mobile app with all information necessary to complete a transaction. The mobile app now has the menu, images of available products, price of these products. In this case the user makes the product selection, makes the payment for the selected product on the mobile app. The mobile app forwards the user selection information to the Vending Machine Platform, which in turn directs the machine to dispense the selected product. The user does not touch the machine or the touch screen in any way to finish the transaction in case of mobile app payment. The transaction is entirely done on the mobile app. Once the product is dispensed the user receives a notification on the mobile app. This entire process depends on the same primary network. If the primary network fails, this system depends on the secondary channel and ternary successively.
[00045] Fig.2 illustrates a method 300 for vending freshly mixed idli and/or dosa batter instantly, according to an embodiment herein. The method for vending freshly mixed idli and/or dosa batter instantly comprising the steps of,
[00046] At block 201, detecting the user presence in front of the vending apparatus and also checking availability of the batter powder;
[00047] At block 202, providing input by the user through a user interface 106, wherein the input includes type and amount of the batter required and also user identification information;

[00048] At block 203, receiving payment 107 from the user through a payment
interface 106;
[00049] At block 204, processing the input from the user interface 106 in the
microcontroller along with PLC 101 and transferring the batter powder from a
compartment to a mixing chamber 111 through a screw conveyor 105 A, 105B;
[00050] At block 205, controlling motor arrangement 109, gear mechanism 104 and
sensor arrangement 108 by a microcontroller to transfer the required amount of the
batter powder to the mixing chamber 111;
[00051] At block 206, adding water from a water filter to the mixing chamber 111;
[00052] At block 207, mixing the batter powder and the water in the mixing chamber
111 by an agitator and thereby forming fresh batter, wherein the mixing chamber 111
includes the agitator
[00053] At block 208,dispensing the fresh batter to a container through a dispenser
113;
[00054] at block 209, cleaning the mixing chamber 111 by obtaining water from the
water filter 112; and
[00055] At block 210, draining out a wastewater from the mixing chamber 111 through
a drain outlet 114.
[00056] The present vending machine can work under any conventional power system
available such as UPS, solar, and so on.
[00057] The foregoing description of the specific embodiments will so fully reveal the
general nature of the embodiments herein that others can, by applying current
knowledge, readily modify and/or adapt for various applications such specific
embodiments without departing from the generic concept, and, therefore, such
adaptations and modifications should and are intended to be comprehended within the
meaning and range of equivalents of the disclosed embodiments. It is to be understood
that the phraseology or terminology employed herein is for the purpose of description
and not of limitation. Therefore, while the embodiments herein have been described in

terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the embodiments as described herein.

We Claim:
1. An apparatus for vending fresh batter instantly based on user requirement;
wherein said apparatus comprises of:
at least a water filter 112; a user interface device 106; and a payment interface
107;
characterized in that
wherein the apparatus further includes at least one hopper 102, a mixing
chamber 111, at least a screw conveyor 105, at least one gear mechanism 104,
at least a motor arrangement 109, plurality of sensor arrangement 108, a
microcontroller along with PLC 101 and a dispenser;
wherein the hopper 102 includes at least one compartment 103A, 103B for
storing batter powder;
wherein the user interface device 106 provided for allowing the user to give the
input; wherein the input includes the amount and type of the batter required and
also include user identification information;
wherein the screw conveyors 105 placed between the compartment (103A,
103B) and the mixing chamber 111 configured for transferring the batter
powder from the compartment (103A, 103B) to the mixing chamber 111;
wherein the water filter 112 attached to the mixing chamber 111 to provide
required amount of water to the mixing chamber 111 for preparing the batter;
wherein the mixing chamber 111 includes an agitator for mixing the batter
powder along with the water and thereby forming the fresh batter; and
wherein the microcontroller along with PLC 101 configured to control the gear
mechanism 104, the motor arrangement 109, and plurality of sensor
arrangement 108 for dispensing fresh batter instantly through the dispenser 113

according to the user input and after receiving payment from the user, wherein the payment interface 107 provided for receiving payment.
2. The apparatus as claimed in claim 1, wherein one end of the two screw conveyors 105 attached to the two compartments 103A, 103B separately and connected with the gear mechanism 104; and wherein another end of the two screw conveyors 105 attached to the mixing chamber 111 with a motorised valve in between.
3. The apparatus as claimed in claim 2, wherein the motorised valve closed after transferring the batter powder from the compartment 103 A, 103B to the mixing chamber 111; wherein the two screw conveyors 105 are kept parallel to each other with a predetermined inclination.
4. The apparatus as claimed in claim 1, wherein the gear mechanism 104 attached with a proximity sensor for controlling the transfer of the batter powder from the compartment 103A, 103B to the mixing chamber 111.
5. The apparatus as claimed in claim 1, wherein the water filter 112 attached to the mixing chamber 111 provides required amount of water to the mixing chamber 111 through a solenoid valve, wherein the solenoid valve placed between the water filter 112 and the mixing chamber 111.
6. The apparatus as claimed in claim 1, wherein the dispenser 113 transfers the fresh batter to a vessel through a three way valve.
7. The apparatus as claimed claim 1, wherein the apparatus further includes a drain outlet 114 provided for draining out waste water from the mixer through the three way valve after cleaning the mixer 111; wherein the three way valve remain in closed position at the time of cleaning and get opened to drain out the waste water.

8. The apparatus as claimed in claim 1, wherein the microcontroller along with PLC 101 configured to control and monitor remotely through a computer or a mobile device via wireless communication network using an application.
9. The apparatus as claimed in claim 1, wherein the apparatus further includes a chutney vending unit that provides chutney sachet to the user based on user preference.
10. A method for vending fresh batter based on a user requirement comprising the steps of:
detecting the user presence in front of the vending apparatus and also checking availability of the batter powder;
providing input by the user through a user interface 106, wherein the input includes type and amount of the batter required and also include user identification information
receiving payment 107 from the user through a payment interface 106; transferring the batter powder from a compartment to a mixing chamber 111 through a screw conveyor 105A, 105B;
controlling motor arrangement 109, gear mechanism 104 and sensor arrangement 108 by a microcontroller to transfer the required amount of the batter powder to the mixing chamber 111; adding water from a water filter to the mixing chamber 111; mixing the batter powder and the water in the mixing chamber 111 by an agitator and thereby forming fresh batter, wherein the mixing chamber 111 includes the agitator; dispensing the fresh batter to a container through a dispenser 113;

cleaning the mixing chamber 111 by obtaining water from the water filter 112;
and
draining out a waste water from the mixing chamber 111 through a drain outlet
114.