The present invention relates to an ayurvedic oil based hair mask composition in the form of emulsion comprising a) an ayurvedic oil and an emulsion base, wherein said composition is applied as pre wash or post wash on the hair/scalp and is rinsed off with water or shampoo and said composition provides comparable efficacy when compared to 100% ayurvedic oil composition. BACKGROUND OF THE INVENTION Damaged hair is a major challenge that most people are facing today. Dry hair and damaged hair occur due to several factors including weather exposure (both natural and severe e.g. sun and wind), mechanical treatments (brushing hair), excessive treatments using chemicals, dying hair, heat styling, etc. In combination, using cleansing products, which can be excessively stripping of hair's natural oils, can also lead to split ends, dull hair, and exacerbate dry hair. To mitigate the damage, oil treatments, hair masks, and chemical treatments including conditioners are commonly used. Consumers oil hair both prewash and post wash. Prewash oiling, most commonly followed by a shampoo wash, is done as it is believed that oils nourish hair and protect it during the wash process. Post-wash oiling is done for manageability and styling. The oiling habit is widely practiced by people across the Central Asia and Middle East region. Commonly used oils include olive oil, mineral oil, avocado oil, apricot kernel oil, rice bran oil, and coconut oil. Hair oiling as a treatment for healthy hair strongly hails from Ayurvedic medicinal. The scalp, as per Ayurveda, is composed of multiple energy-relieving points called marmas. Hair oiling is seen as a rejuvenation tool that helps extract any excess doshas that accumulate in the head, the seat of all decision-making, thinking and stress — thereby restoring balance. Ayurveda recommends usage of various hair oils such as Kesini, Durdurapatradikeram, Bringamalakadi Taila, Durvadikeram, Chembaratyadikeram, Winsoria, Dinesavalyadikeram, Neelinirgundyaditaila, Jeemoothabringaditaila, Malathyadi keram, Triphaladi keram, Dasapushpam Oil, Prapoundarikadi keram, Bringadi thailam etc. Of these Bringadi Thailam is a potent concoction of natural ingredients, prepared using Ayurvedic methods. It is mentioned in the classical Ayurvedic text of Sahasrayogam and is best known for its ability to help in healthy and lustrous hair. The ingredients used in Bringadi hair oil, like Indian gooseberry, milk, are rich in nutrients that are vital in enhancing the health and strength of the hair. These ingredients are picked with utmost care and the concoction is prepared using time-honoring methods. The ingredients are used for their natural and Ayurvedic anti-fungal and anti-dandruff properties. Ayurveda prescribes Bringadi Thailam to naturally strengthen the hair shaft and make hair more nourished, shiny, soft and beautiful. It also conditions the scalp to prevent dandruff. Ayurveda recommends that one should always massage the scalp & hair with warm hair oil before washing them. Gently massaging the scalp with ayurvedic oil can encourage hair growth and strengthen the hair from the roots to the tip. It may also increase moisture, lustre, and shine, and possibly prevent hair loss. However, one of the problems is that the practice is quite tedious, and it does not attract modern consumers due to lack of time & convenience. On the flip side, consumers also understand the benefit that the ayurvedic oiling practices offer. Hence there is a growing interest to have products that are more convenient, less time consuming, have a modern outlook and yet offer benefits of ayurvedic oils. To address this need, the present inventors have now developed an ayurvedic oil based hair mask composition in the form of an emulsion, comprising 5-20%w/w ayurvedic hair oil. In a pre wash ritual it can be applied on dry hair/scalp and can be removed by rinsing off with a shampoo. In the post wash ritual, it can be applied on freshly cleansed hair, and simply rinsed off with water without any shampoo. The developed ayurvedic oil based hair mask, comprising about 5-20%w/w ayurvedic oil, provides comparable efficacy with respect to 100% ayurvedic oil composition in both pre and post wash rituals. Thus, the present ayurvedic oil-based hair mask provides an advantage such as desired efficacy, convenience, & relevance for contemporary consumers. Moreover, the Ayurvedic oil based hair mask composition of the present invention unexpectedly provides the synergy between the Ayurvedic oil and an emulsion base thus improving the efficacy when compared to 100% Ayurvedic oil composition. Thus, the present Ayurvedic oil based hair mask provides an advantage such as comparable efficacy, convenience, & relevance for contemporary consumers. The present disclosure is directed to overcome one or more limitations stated above or any other limitations associated with the prior art. SUMMARY OF THE DISCLOSURE The present disclosure achieves the above-stated objective by providing an Ayurvedic oil based hair mask in the form of emulsion. The Ayurvedic oil based hair mask composition comprises an ayurvedic oil and an emulsion base, wherein said composition is as applied pre wash or post wash on the hair/scalp and is rinsed off with water or shampoo and said composition provides comparable efficacy when compared to 100% Ayurvedic oil composition. The present hair mask composition provides synergy between Ayurvedic oils, and an emulsion base disclosed and thus provides comparable efficacy when compared to 100 % ayurvedic oil composition. The foregoing summary is illustrative only and is not intended to be in any way limiting. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features will become apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1: provides the results of comparative conditioning effect analysis. Figure 2: provides the results of comparative shine effect analysis. Figure 3 - provides the results of comparative softness effect analysis. Figure 4 - provides the results of comparative smoothness effect analysis. Figure 5 - provides the results of comparative moisture effect analysis. DETAILED DESCRIPTION OF THE PRESENT DISCLOSURE While the embodiments in the disclosure are subject to various modifications and alternative forms, specific embodiment thereof has been shown by way of example in the figures and will be described below. It should be understood, however, that it is not intended to limit the disclosure to the particular forms disclosed, but on the contrary, the present disclosure is to cover all modifications, equivalents, and alternatives falling within the scope of the disclosure. It is to be noted that a person skilled in the art would be motivated from the present disclosure and modify various features of the system or method, without departing from the scope of the disclosure. Therefore, such modifications are considered to be part of the disclosure. The terms "comprises", "comprising", or any other variations thereof used in the disclosure, are intended to cover a non-exclusive inclusion, such that a system and method that comprises a list of components does not include only those components but may include other components not expressly listed or inherent to such system, method, or assembly, or device. The following paragraphs describe the various components of an Ayurvedic oil based hair mask composition of the present disclosure according to an embodiment of the present description. A first aspect of the present invention relates to an ayurvedic oil based hair mask composition in the form of emulsion comprising a) about 5 to 20% w/w of ayurvedic oil and an emulsion base wherein said composition is applied as prewash or post wash on the hair/scalp and is rinsed off with water or shampoo and said composition provides comparable efficacy when compared to 100% ayurvedic oil composition. The term "Ayurvedic oil" as used herein is selected from the group consisting of Bringadi Oil, Kesini, Durdurapatradikeram, Bringamalakadi Taila, Durvadikeram, Chembaratyadikeram, Winsoria, Dinesavalyadikeram, Neelinirgundyaditaila, Jeemoothabringaditaila, Malathyadi keram, Triphaladi keram, Dasapushpam Oil, Prapoundarikadi keram and combinations thereof and combinations thereof. The Ayurvedic oil is present in an amount of about 5 to 20% w/w. More particularly in an amount of about 8 to 15% w/w The term " Bringadi Oil" as used herein includes following ingredients. Sanskrit name Botanical name Neelini Indigofera tinctoria Amalaki Emblica officinalis Bringaraja Eclipta alba Chakralatha Cardiospermum helicacabum Yashtimadhu Glycyrrhiza glabra Gunja Abrus precatorius Narikela dugdha Cocos nucifera milk Karpoora Cinnamomum camphora Goksheera Cow's milk Tila thaila Sessamum indicum oil As used herein, an "emulsion composition" means a composition comprising at least two distinct phases known as the internal phase and the external phase. As used herein, the term "internal phase" of the emulsion composition is the phase wherein the material or materials of said phase are dispersed as small particles within another distinct phase of the emulsion composition. As used herein, the term "external phase" of the emulsion composition is the phase wherein the internal phase is dispersed within. The emulsion may be in the form of oil in water or water in oil composition. The composition as use herein may be in the form of liquid or semi solid and includes cream, lotions and the like. The "emulsion base" as used herein comprises the excipients selected from the group consisting of emollients, preservatives, humectants, surfactants, stabilizers, natural extracts, conditioning agents, perfumes, solvents and combinations thereof. The present composition provides comparable efficacy such as softness, moisture, shine, conditioning and smoothness of the hair when compared to 100% ayurvedic oil composition. The Hair mask as used herein is applied for 2 to 20 minutes in particular 4 to 8 minutes on the hair/scalp and is applied in the amount of about 0.1 ml to 2 ml. According to the one of the embodiments of this aspect, the surfactants include in particular cationic surfactants are selected from the group consisting of Pentaclethramidopropyl dimethylamine, Glycerin (Capillus Pro 22™), PCA Ethyl Cocoyl Arginate (CAE) and Brassicyl Isoleucinate Esylate (and) Brassica Alcohol (Emulsense). The surfactants or cationic surfactants are present in an amount of about 1.0-2.0 w/w According to another embodiments of this aspects, the emollient is selected from the group consisting of Heptyl Undecylenate (Lexfeel Natural™), Shea Butter Ethyl Esters (Lipex Shea Light), cocoglycerides (Myritol 331), Caprylic/Capric Triglyceride, coco-caprylate/caprate (and) hydrogenated olive oil unsaponifiables (VAVS) and combinations thereof. The emollients are present in an amount of about 1 to 10%w/w. According to another embodiments of this aspects, the stabilizers is selected from the group consisting of Cetyl Alcohol (Ginol 16™), Behenyl Alcohol (Lanette® 22), Stearyl Alcohol (Lanette 18) & Cetearyl Alcohol (Lanette O/MB) and combinations thereof. The stabilizers are present in an amount of about 1 to 6 % w/w. According to another embodiments of this aspects, the humectant is selected from the group consisting of glycerin propylene glycol, glycerin, hexylene glycol, D-panthenol, sodium PCA, propanediol and butylene glycol and combinations thereof. The humectants are present in an amount of about 1 to 5 %w/w. According to another embodiments of this aspects, the preservative includes Caprylhydroxamic Acid (and) Glyceryl Caprylate (and) Glycerin (Spectrastat G2 Natural) Sorbitan Caprylate (and) Propanediol (and) Benzoic Acid (Nipaguard SCE), Benzyl Alcohol (and) Salicylic Acid (and) Glycerin (and) Sorbic Acid (Geogard ECT), Magnolol (and) Honokiol (and) Caprylyl Glycol (M-STAT). The preservative are present in an amount of 1 to 1.5%w/w. According to another embodiment of this aspect, the hair conditioning agent are selected from the group consisting of Brassica Alcohol (and) Brassicyl Valinate Esylate (Amino Sensyl HC™), Hydrolyzed jojoba ester (and) water (Floraesters K-20W Jojoba), Hydrolyzed vegetable protein (Gluadin Kera-P LM) and Hydrolyzed soy protein (Gluadin Soy Benz) and combinations thereof. The hair conditioning agent are present in an amount of about 6 to 15%w/w According to the one of the embodiments of this aspect, the natural extract are selected from the group consisting of Phyllanthus emblica fruit extract, Indigofera Tinctoria Leaf Extract, Glycyrrhiza Glabra Root Extract, Eclipta Prostrata Extract, Centella asiatica extract, Aloe barbadensis Leaf Juice, Mangifera indica Fruit Extract, Ocimum tenuiflorum Extract, Hibiscus sabdariffa Flower Extract, Vetiveria zizanoides root extract, Cuminum cyminum Seed Extract, Cassia alata Leaf Extract and combinations thereof. The natural extract active ingredients are present in amount of about 0.1 to 1.0%w/w A second aspect of the present invention relates to an ayurvedic oil-based hair mask composition in the form of emulsion comprising a) about 8.0-15%w/w of bringadi oil, b) an emulsion base comprising cationic surfactant in an amount of 1.0-2.0 w/w. wherein said composition is applied as prewash or post wash on the hair/scalp and is rinsed off with water or shampoo and said composition provides comparable efficacy when compared to 100% ayurvedic oil composition. According to the one of the embodiments of this aspect, the Ayurvedic based hair mask composition is stable when subjected to temperature 25°C, 5°C, 40°C and 50°C for 3 months. The ayurvedic oil based hair mask composition has a shelf life of at least 2 years. This is based on the accelerated stability study that the inventors have conducted on the composition at 25°C, 5°C, 40°C and 50°C for 3 months. According to the another embodiments of this aspect, the Ayurvedic oil based hair mask composition is in the form of cream. A third aspect of the present invention relates to a synergistic ayurvedic oil based hair mask composition in the form of cream comprising a) about 8.0-15%w/w of bringadi oil, and b) an emulsion base comprising i) about 6 to 15 %w/w of hair conditioning agent, ii) about 1.0-2.0 w/w of cationic surfactants, wherein said composition is applied as prewash or post wash on the hair/scalp and is rinsed off with water or shampoo and said composition provides comparable efficacy when compared to 100% ayurvedic oil composition. A fourth aspect of the present invention relates to a process for the preparation of Ayurvedic oil-based hair mask composition wherein the process comprises following steps 1) mixing water, hair conditioning agent, and optionally other emulsion base excipient to form phase A, 2) mixing ayurvedic oil, surfactant and optionally other emulsion base excipient to form phase B, 3) adding mixture of step 2) to step 1) and homogenizing at high speed to form the emulsion. 4) adding other emulsion base excipient to step 3. Phase A, Phase B, Phase C, Phase D Example 1-18 discloses the composition of ayurvedic oil based hair oil composition in Table 1 below. Table 1 EX- 001 EX- 002 EX- 003 EX- 004 EX- 005 EX- 006 EX- 007 EX- 008 EX- 009 EX- 010 EX-011 EX- 012 EX- 013 EX- 014 EX- 015 EX- 016 EX- 017 EX- 018 Aqua (Phase A) 64.10 61.80 60.80 61.00 64.00 62.00 64.00 61.00 60.00 62.00 61.00 61.50 62.50 65.50 60.60 60.60 69.10 60.50 Glycerine (Phase A) 3.00 3.00 2.00 3.00 3.00 1.00 1.00 3.00 3.00 3.00 5.00 3.00 3.00 2.00 5.00 3.00 4.00 3.00 Phyllanthus emblica fruit extract( Phase D) 0.10 0.50 0.10 0.50 1.00 1.00 1.00 0.50 0.50 0.50 0.50 0.50 1.00 1.00 0.10 0.10 0.10 0.50 Indigofera Tinctoria Leaf Extract( Phase D) 0.10 0.50 0.10 0.50 1.00 0.50 0.50 0.50 0.50 0.50 0.50 0.50 1.00 0.50 0.10 0.10 0.10 0.50 Glycyrrhiza Glabra Root Extract ( Phase D) 0.10 0.10 0.50 0.50 1.00 0.50 0.50 0.50 0.50 0.50 0.50 1.00 1.00 0.50 0.10 0.10 0.10 0.50 Eclipta Prostrata Extract (Phase D) 0.10 0.10 0.50 0.50 1.00 1.00 1.00 0.50 0.50 0.50 0.50 1.00 1.00 1.00 0.10 0.10 0.10 0.50 Brassica Alcohol (and) Brassicyl Valinate Esylate (Phase A) 13.00 6.00 6.00 6.00 8.00 6.00 6.00 13.00 13.00 10.00 15.00 10.00 8.00 7.00 10.00 8.00 6.00 10.00 Heptyl Undecylenate (Phase B) 8.00 8.00 8.00 10.00 5.00 3.00 1.00 3.00 3.00 3.00 3.00 5.00 5.00 3.00 5.00 5.00 5.00 4.00 Cetyl Alcohol (Phase B) 1.00 5.00 4.00 3.00 5.00 6.00 6.00 6.00 4.00 6.00 3.00 3.00 5.00 3.00 3.00 5.00 3.00 6.00 Bringadi oil (Phase B) 8.00 - - 12.00 - - 15.00 - - 10.00 - - - - - - - 10.00 Kesini(Phase B) - - - - 8.00 Durdurapatradikeram(Phase B) - - - - - - - - - - - 10.00 - - - - - - Bringamalakadi Taila(Phase B) - - - - - - - - - - - - 8.00 - - - - - Durvadikeram(Phase B) - - - - - - - - - - - - - - 12.00 - - - Chembaratyadikeram(Phase B) - - - - - - - - - - 8.00 - - - - - - - Winsoria(Phase B) - - - - - - - - - - - - 12.00 - - - - Dinesavalyadikeram(Phase B) - - - - - - - - 10.00 - - - - - - - Neelinirgundyaditaila(Phase B) - - - - - - - 8.00 - - - - - - - - - - Jeemoothabringaditaila(Phas eB) - 12.00 Malathyadi keram(Phase B) - - 15.00 - - - - - - - - - - - - - - - Triphaladi keram(Phase B) - - - - - 15.00 Dasapushpam Oil (Phase B) 8.00 - Prapoundarikadi keram(Phase B) - - - - - - - - - - - - - - - 13.50 - - Pentaclethramidopropyl dimethylamine, Glycerin (Phase B) 1.00 1.00 1.00 1.00 1.00 2.00 2.00 2.00 2.00 2.00 1.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 Caprylhydroxamic Acid (and) Glyceryl Caprylate (and) Glycerin (Phase C) 1.00 1.00 1.00 1.00 1.00 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 Essential oils ( Phase D) 0.50 1.00 1.00 1.00 1.00 0.50 0.50 0.50 1.50 0.50 0.50 1.00 1.00 1.00 0.50 1.00 1.00 1.00 Procedure for the preparation of Example 1-18 1) Water and glycerine were added to manufacturing vessel and stirred. 2) Brassica Alcohol (and) Brassicyl Valinate Esylate was added to step 1) after the vessel temp reaches 55°- 60°C under high-speed stirring. Temperature was maintained at 80°C. This mixture formed Phase A. 3) Phase B ingredients were added in separate vessel and heated upto 80°C. 4) Phase B ingredients in step 3) were added to Phase A ingredients of step 2) and were homogenized at high speed for 10 mins. 5) Caprylhydroxamic Acid (and) Glyceryl Caprylate (and) Glycerin was added to step 4) around 65°C and stirring was continued at high speed until temp reaches 30°- 35°C to form phase C. 6) Phase D ingredients were added to step 5) and stirring was continued. 7) The above mixture of step 6) was cooled. STABILITY STUDIES The stability of the Examples was assessed by adopting the below mentioned methodology. Methodology: The stability testing was carried out in accordance with Examples of the present invention and then putting it against different temperature explained as below: Generally the stability is carried out at 4 different temperatures i:e 5deg, 25deg, 40deg and 50deg for a period of time. The time period is usually for 3 months. After every time point i:e after 1 month, 2months, 3 months the sample was evaluated. Physical and chemical parameters evaluated are as such; the appearance, the color, odor or fragrance, pH value, viscosity, and emulsion stability or signs of separation. Other aspects are studies along with the physical and the chemicals parameters which is the Microbiological stability to find out if there is any growth contamination with bacteria, mold and/or yeast. Results and Summary: It was observed that, in the non-agitated position, the formulation in accordance with the present invention was stable for over three months even when exposed to varying temperature conditions. The results of the studies are summarized in the Table 2 below Table 2 STABILITY TYPE Init ml 1 St Month 2nd Month 3 rd Month STABILITY CONDITION RT 25DegC 5 Deg 40 DegC 50 Deg C 25 Deg C 5 Deg 40 DegC 50 DegC 25 DegC 5 Deg 40 DegC 50 Deg C Appearance MU d oily pas te Mild oily paste Mild oily paste Mild oily paste Mild oily paste Mild oily paste Mild oily paste Mild oily paste Mild oily paste Mild oily paste Mild oily paste Mild oily Mild oily >aste paste Color Bro wn Brown Brown Brown Brown Brown Brown Brown Brown Brown Brown Jrown Brown Odour Ch ara cter istic Charact eristic Charact eristic Charact eristic Charact eristic Charact eristic Charact eristic Charact eristic Charact eristic Charact eristic Charact eristic Charact ;ristic Charact eristic PH 5.63 4.22 4.4 4.26 4.12 4.34 4.23 4.26 4.12 4.01 4.29 1.15 4.30 Viscosity (cP) TF-96= 0.5r pm 180 000 cP TD- 94>0.5R PM= 116600 cP TD- 94>0.5R PM= 124900 cP TD- 94>0.5R PM= 207800 cP TD- 94>0.5R PM= 170900 cP TD- 94>0.5R PM= 126100 cP TD- 94>0.5R PM= 132300 cP TD- 94>0.5R PM= 180500 cP TD- 94>0.5R PM= 160100 cP TD- 94>0.5R PM= 166100 cP TD- TD-94>0.5R 94>0.5R PM= PM= 134300 207400 cP cP TD- 94>0.5R PM= 162400 P Centrifugation No sep ara tion No separati on No separati on No separati on No separati on No separati on No separati on No separati on No separati on No separati on No separati on \o