FIEI,I) OF INVENTION 'I'hc present invcntion relates to a pouch made of laminate for storing liquid and a process for preparing the same. 'l'hc flcxiblc pouch have extcndcd shelf life for the storcd contcnt thcrcin and comprising a sealing jaw for enabling conveniencc for usc with an easy tear and a spout to drink. BACKGKOUNI) AN11 PRIOR AK'I' OE' TIIE INVENTION It is known that thc laminatc flcxiblc pouchcs are available in thc markct for storing thc various drinkable liquids or food products. IIowevcr, the pouchcs known in the art for storing the watcr produces offensive odour within one or two days, due to cxposurc of sunlight having ultraviolet radiation. Various scientific rescarchcs reveals that such cxposurc of drinking watcr with sunlight having UV radiation lcads to gcncration of primary amine (such as i.c. primary amino aminc (PAA)) which dcvclop carcinogenic effect in the drinking watcr. Research further rcvcals that sunlight contains cornponcnt of ultraviolet rays such as IJV A and IJV I3 and visible lights followed by Infrared. It is also known that IJV-L3 is far morc harmful than UV A and in presence of high temperature and humidity, it may enhance the action of degradation of polymer by UV exposure. UV-A and 1JV-I3 set up various reactions in laminates, plastics, coatings, lacquers and adhesives, clcaving crystal chains, brcaking up covalent bonds, distorting polar bond and rc-orienting Van Der Wall's forces, as well as setting up reactions bctwccn thc degraded moleculcs, anti- oxidants, slip additives, anti-block agents and the product components, which lcads to harmful chcmicals inside thc product storcd therein. Therefore, the products storcd in such pouchcs arc harmful for consumption. It has bccn obscrvcd that in thc domestic and international markct, morc particularly for developing countrics such water pouches do not have any protcction from dircct sunlight cxposurc. Therefore, such watcr pouchcs produccs offensive odour in the watcr within one or two days. In view of the above-said challcngcs and mass requircment of safe and hygicnic watcr to thc pcoplc of in thc developing countrics, the applicant of the present invention come out with an improvcd laminate structure for producing flexible pouches for storing watcr or mineral fortified water or non-oxonatcd drinking watcr or immunity watcr or othcr drinkable liquid, without affecting the original content filled therein. The applicants addrcssing the grave nccd of large mass for getting safc and packaged drinking or immunity watcr in flexible pouch. IIowevcr, the specific Go-to-market execution nccd of thc packaging format is undcr trial and process. Ilowever, due to failure of thc carlicr laminate to withstand the market conditions, the applicants of the prcscnt invention develop an improved flexiblc pouch for liquid such as nutrient fortified drinking / immunity water. A string of ingrcdicnts for base polymer, adhesives and barrier additives has been brought into the current commercially competent laminate structure. 'l'his laminate is manufactured using the best technological procedures for stability, consistency and conformance to stringent quality and logistic requirements across the world. 'I'he new laminate structure in thc prcscnt disclosure is a completely turnaround from the conventional methods and has taken a distinctively new process and construct of laminated flcxiblc pouches with smart graphics. Thus, the development of such flcxiblc pouch for nutrient fortified water with extended shelf life is a long pcnding requirement. In addition to, the present disclosure provides thc said flcxiblc pouches in multicolour, printable and highly decorative, with a premium finish. OBJECTIVES OF 'I'IIE PRKSEK'I' INVENTION 'l'he primary objective of the prcscnt invention is to provide a laminate structurc for producing flcxiblc pouch for storing liquid such as water or nutrient fortified watcr or non-o~onatcd drinking water or immunity watcr or othcr drinkable liquid, without aSfccting the original content filled therein. Yet another objective of the invcntion is to provide a composition of laminate structure for producing flcxiblc pouch. Yet another objective of the invention is to provide a method for preparation of laminate structure for flcxiblc pouch. Yet another objective of the invention is to provide a method for preparation of multilayer laminate structure for flcxiblc pouch. Yet another objective of the invcntion is to provide an economic, commcrcially and viable solution to producing flcxiblc pouch for storing water. SUMMARY OF 'I'IIE INVEN'SION 'I'he present invention relates to a pouch made of a laminate for storing liquid wherein, the said laminatc comprising one or more layers of polymeric material being adhered to each other in prcscncc of adhesive comprising essentially isocyanate and hydroxyl group, whcrcin the said pouch characterized by improved barrier properties. 'l'hc laminatc structure for producing flexible pouches having enhanced printability or graphics. 'l'hc said flexible pouches are used for storing water or mineral fortified watcr or non-ozonated drinking water or immunity water or other drinkable liquid, without affecting the original content filled therein. 'I'he said flexible pouch having extended shelf for the stored content therein and comprising a sealing jaw for enabling convenience for use with an easy tear and a spout to drink. BRIEF DESCIUPI'ION OF FI<:UII'I:. Anothcr component of thc laminatc is the adhesive material. A solvent free adhesive wherein, main componcnt is 011-terminated and cross-linker is NCO-terminated is used for the prcscnt invention. The ratio of O I I group to NCO group is in thc rangc of 100: 60 to 100: 70. Mixing of both the components can bc done cithcr by auto mixer or by mechanical mixing (hand mixing). Yet another componcnt is I!V Block additives, which are selected from IJVAB1,OCK 25 103025-K or IJVAJ31,OCK 25 103075-K or combination thereof. 'l'hc ink uscd herein is' free from volatile and pungent smelling 'l'olucne and MI:K solvents. 1,ooking at multiple sensitivity of low boiling solvent the entire water pouch laminatc development was restricted to Multi-purposc esterlalcohol based gravure laminatc ink. 'l'hc base film of polyester matt film comprising antislip additivcs and UV additives. In yet another embodiment of the invention wherein said lamintae having 22 to 40 gm/m21day 70 to 100 ccl m2/day, & OcSR in the range of 70 to 100 ccl m2lday. 'I'he inertness to IJV exposure of thc pouch is in the range of 10 to 100 M J I ~b~on,d strength of laminate {(d5l mm (1 OOmmlmin speed)) : 130 (min) Pet to Poly with Pet break. Yet anothcr aspect of thc invcntion is to provide ink composition and method for printing by the ink composition on the said flexible pouch. Yet anothcr embodiment of thc invcntion is to improve printing quality by modifying ink composition, which is lice from free from Toluene and MI:K solvent. It is possible to obtain diJTcrcnt colour ink. Another aspect of the prcscnt invcntion relates to an adhesive used for scaling of thc flexible pouchcs. One of thc most critical components in the laminatc is the adhesive as Primary Aromatic Aminc (I'AA) migrates in to water 1 moisture caused by uncured Iso-cyanatcs in the Solvent Free Adhesives.'l'he specific grade of adhesive based on technical parameters such as chemistry of the adhesive, short curing timc, lower I'AA migration post curing were analyzed. The adhcsive system comprises of' main component 011-terminated and crosslinker is NCO-tcrminatcd and thcrclbrc. some precautions are needed for machine trials such as ncvcr mix adhesive before complete machinc and substrate setting on the machinc is done. The novel laminate structurc, dcvclopcd for producing flexible pouches having enhanced printability or graphics. 'l'hc llcxible pouches are used for storing water or mineral fortified water or non-ozonated drinking water or immunity water or other drinkable liquid, without affecting the original content filled thcrcin. 'l'hc flcxiblc pouch have cxtcndcd shelf for the stored content therein and comprising a sealing jaw 1i)r enabling convenience for use with an easy tear and a spout to drink. The present invention provides a multilayer laminate specification dcvelopcd and offered for product packaging compatibility of non ozonated drinking I immunity water in flcxiblc pouches. 'l'his is an economic and commercially viable solution to cater source of' mass hydration at an affordable price and convenient on the go usage. The present invention also relates to GV block additives used for producing the flexible water pouchcs and its charactcristics. A laminate structurc has been developed that can bc inert to direct [JV exposure up to an extent > 100 MJlm2. 130th simulated laboratory tests and Iicld clualifications were made as per Atlas protocol. UVA 131,OCK 25 103025-K and IJVA BI,OCK 25 103075-K wcrc uscd in the laminate. IJVA I3I,O(IK 25 is primarily designed for protecting the contents inside a transparent packaging tilm from UV or visible light. In the use for the IJV protection of polyolclins. the let-down ratio is between 2 and 3%. UVARI,OCK 75 has bccn dcvclopcd as a UV barrier, which contains an efficient IJV absorbing additive for flexible packaging. The use-levcl of IJVARI,OCK 75 dcpcnds on various factors such as exposure time, climatic conditions and film thickness. In thc use for the UV protection of polyolefins, the typical lct down ratio is bctwccn 2 and 5%. The technical characteristics lor film production such as layer ratio, BIJR (blow up ratio), llxtrudcr type for homogenization of the polymers were donc based on dcsign of the Poly recipe. 'I'he trapped solvent tcsting was donc according to ASTM G15 1 -09 standards by a simple test using Chromatograph ccluipment. Exposed the bluc sample to IJV radiation at 22 "(1 using 366 nm I;V radiation lamp for 72 hrs and then tried analyzing thc watcr that was wrapped inside the foldcd laminatc. 'I'hc <;C plot when cxamincd did not show any traces of any solvent (1;igurc 2). lkrther, it was critical that the laminatc be exposed to the 340 nm UV radiation with lamp at 60°C as per AS'I'M test to simulatc this solvent migration. 'I'he above data was generated as: a) Samplc of watcr from bluc laminatc, which was exposed to UV radiation b) Sample of plain watcr before tcsting laminate, control 1 c) Sample of plain water after tcsting bluc laminate, control 2 to see if anything got dcsorbcd in the (iC column d) Samplc of IJV exposed bluc laminatc by itself tested like AA in a vial at 150°C for 30 min Simulated and I:ield tcsts wcrc successfully conducted and qualification demonstrated in indoor laboratories 01' international repute and government accreditation as well as at thc outdoor field testing under different climatic conditions (with extended exposure to UV- A and IJV-B light of varied wavelcngth and energy, elevated temperature of 45 to 60 degree Celsius and relative humidity higher than 60 94). Flexible laminated pouchcs exposed to and abused under extreme climatic and IJV radiation conditions were tcstcd for sensory evaluation by an expert bcnch of qualified sensory panel. (lonlirmatory acid tcsts were conducted to qualify for repeatability and reproducibility of quality and logistic requirements of thc flexible watcr pouch for packaging drinking / immunity water fortificd with minerals. * IIcncc, a unique laminate structurc which can seal fortified drinking / immunity water and resistant to IJV exposure is produced. 'I'hc currcnt commercially approved 12-50 micro basc film has flexiblc characteristics and offers a matt surface iinish for high definition graphics for exccllcncc in aesthetic and shelf'-appeal. Rcvcrse printing is possible on this new laminate structurc by using MI:K and 'l'olucne free ink thereby prcvcnting imparting of any odour. Aliphatic solvent less adhcsive of reputed and chemically stable / inert grade liX 7660 or EX 7910 is used in conjunction with 50p spccial I'olymcr basc film. 'l'hc cntirc string / chain of stabilized and tested ingrcdicnts wcrc uscd in a total unconventional processing method to cxtrudc and finally produce a laminated film of unique properties for packaging fortified mineral drinking / immunity watcr. l'his packaging format is a ncw structure and stands out unique and unparallcl for packaging of drinking 1 in~n~unitwya ter fortified with mincrals which would function as providcr of' hydration of mass at an affordable pricc, casy reach for lightcr logistic bcncfits and convenience to drink watcr from a pouch through a sprout without any spillage 1 wastage thus chcrishing valuc for money for thc common man. . . I he major fcaturcs of the prcscnt laminate structure are as follows. Matt Polyester basc film to cut down UV charge penetrating the pouch and crcating a grccnhousc cnvironmcnt. 'I'olucnc and MI'K f'rcc ink with no residual solvcnt was uscd, cvcntually reproducing high pixel graphics with bare minimum ink covcragc (< 0.6 gsm) for surface printing and aesthctic appcal. Aromatic adhesive compounds were rcplaced with aliphatic compounds thcrcby rctaining low I'AA profile. 'I'hc thickness of the scalant poly film was tinkered by 25% to ensure lower migration lcvcls in the much sensory scnsitivc drinking / immunity watcr. 'l'hc laminatc structure increased dosage of UV additivcs in single layer against earlier 3 layers thereby saving upon material. UVA block 25 was supported with addition of UVA block 75 which was a totally new and non-conventional concept in the regular lamination process for flcxible packaging. Change of organic slip additive to inorganic slip in poly to avoid migration 1 leeching of salts / ions into water. Conventional barricr compounds like "Smell Free" was totally withdrawn against carlicr conventional usage in all layers of the laminatc construct. Base poly Film for thc flcxible laminate was extruded using only I,I,I>I'li (non migratory 1 non-slip grade) replacing the regular 1,I)PE (migratory and convcntional slip base) was avoided for prevention from migratory additivcs. Produced flexible pouches having enhanced printability and graphics. Pouch achieved in an economical, practical, and facile manner. A pouch made of a laminate 1i)r storing liquid whcrein, the said laminate comprising onc or morc layers of polymeric matcrial being adhered to each othcr in prcscncc of adhesive comprising esscntially iso-nitrilc and hydroxyl group, whcrein the said pouch charactcrizcd by improvcd barrier propcrlics particularly water vapor transmission ratc (W.V.'l'.R) in the rangc of22 to 40 gm/m2/day and oxygen transmission ratc (O.'f.R) in thc rangc 01' 70 to 100 ccl m2/day and shclf life enhanced by 5-1 5 times thcn commercial pouch. 2. 'I'he pouch as claiincd in claim 1. wherein polymeric matcrial is sclcctcd from matt polycstcr film and polyolefin film or combination thereof whcrcin, said lilm comprising additives, stabilizers or colorants. 3. 'I'hc pouch as claimcd in claim 1 or 2, wherein the matt polyester film is either both sidc untrcatcd or one side corona treated or one sidc chcmical trcated. 4. 'I'hc pouch as claimcd in claim 1, 2 or 3, whcrein thickness of matt polycstcr film is in thc rangc of 6 to 20 microns, morc preferably in the rangc of 10 to 15 microns. 5. 'I'hc pouch as claimcd in claim 1 or 2, wherein polyolcfin film is linear low density poly cthylcnc (I,I,I)Pl<) or low density poly ethylene (1,III'l:) or combination thcrcol'. 6. 'I'hc pouch as claimcd in claim 1 , 2 or 5, wherein thickness of polyolcfin film is in the rangc of 15 to 80 microns, more preferably in the rangc of 40 to 65 microns. 7. 'l'hc pouch as claimcd in claim I , whcrcin one or more laycrs of polymcric matcrial arc adhcrcd by adhesive matcrial (7a) and / Or, extrusion process (7b). 8. 'I'hc pouch as claimcd in claim 1 or 7, wherein adhcsivc matcrial (7a) is solvent ficc. And the extrusion process (7b) is of polyethylene or, pol yolci fin. 9. 'I'hc pouch as claimcd in claim 1. 7 or 8, wherein adhesive matcrial is selected such as main component is hydroxyl terminated group (-011- group) and cross-linker is iso-nitrile terminated group (NCO- group). 10. 'l'hc pouch as claimcd in claim 9, wherein adhesive material main componcnt and crosslinkcr is in the ratio of 10: 1 to 10: 8 11. 'l'hc pouch as claimcd in claim 1, wherein combination of IJV A Block 25 additivcs arc used along with (JV A Block 75 and equivalent IJV stabilizer. 12. 'I'he pouch as claimcd in claim 1 or 11, wherein UV Rlock 25 additivcs are in the rangc of 20 O/o to 80%. 13. A process for preparing thc laminate as claimed in claim 1 comprises the steps of: (i) cxtruding first basc film of matt polyester either both sidc untreated or one sidc corona treated or one side chemical treated having thickness in the rangc of of 15 p to 80 p, more preferably in the rangc of 40 11 to 65p, csscntially having anti slip additivcs and lJVA25 & CVA75. (ii) printing with ink composition wherein, said ink composition is ficc from 'l'olucnc and M1:K solvent; (iii) curing the basc film t h ~o~bsta incd in step (ii) at temperature in the rangc of 80°C to i 50Y' Sor a time period of 30 to 60 seconds (iv) applying adhcsivc on thc surface of the basc film as produced in step (iii); (v) cxtruding second polyolclin and adhering the same on the surface of the first basc film as obtained in step (iv); (vi) curing film as obtaincd in stcp (v) for at least 8 to 10 days in order to producc a laminatc. 14. A process for manufac~uringp ouch made of a laminatc as claimcd in 1 comprising the steps of; (i) cxtruding first basc film of matt polyester either both side untreated or one side corona treated or one side chemical trcatcd having thickness in the rangc of 6 p to 20 p, morc preferably in thc rangc of 40 y to 6.511. csscntially having anti slip additives and lJVA2.5 & LVA7.5. (ii) printing with ink composition wherein, said ink composition is free from 'l'olucnc and M 1iK solvent; (iii) curing thc basc film thus obtained in step (ii) at tcmpcraturc in thc rangc of 80°C to 1.50°C for a time period of 30 to 60 seconds; (iv) applying adhcsivc on the surface of the basc film as produccd in step (iii); (v) cxtruding second polyolcfin and adhering the same on thc surfacc of thc first basc film as obtaincd in step (iv); (vi) curing film as obtaincd in stcp (v) for at least 8 to 10 days in order to producc a laminatc; (vii) slitting of laminatc as obtaincd in stcp (vi); (viii) scaling edges ofthc laminate as produced in stcp (vii); (ix) Packaging of water, nutricnt fortified water, or similar drinks, bcvcragcs ctc. 15. The pouch as claimcd in claim 1, having WVTR in the range of 20 to 35 gm/m2/day & OTR in the rangc of 65 to 95 cc/ m2/day. 16. The pouch as claimcd in claim 1, havi the range of 10 to 100 MJ/m2.