M.Sc

Well, you have to go through the link below and you can also check the admission process and the respective dates of the exam individually:
https://www.shiksha.com/science/colleges/m-sc-geology-colleges-india.

Instead of going abroad, I will suggest you to complete your Ph.D here, because after completing your Ph.D for equivalence, you have to apply it for AIU (Association of Indian University). So, finally, your work place will be India.

You can do M.Phil after the Post graduation.

Hi,
M.Sc Home Science:
Eligibility:
Bachelor's degree from a recognised university in any of Home Science, Nutrition, Dietetics, Food Science, Biology, Microbiology, Clinical Biochemistry, Life Sciences, BNYS (Naturopathy), B.A. M. S. (Ayurveda), and PG Diploma in Dietetics. A minimum aggregate score of 45% at the level of graduation. Thanks.

Yes Vamsi,
There is no reason why you can't. But, also you must have relevant education background, have good grades, LOR, SOP etc.

There are many universities for civil engineering in UK:
1) Imperial College London
2) Cambridge University
3) LEEDS University
4) Glasgow University
5) Brunel University
These are the top ranking universities you can search. You need to get only 1 exam i.e IELTS, it is an English language test. Your score should be minimum 6.5 not less than 6 in each section.

I would suggest you to prepare for GATE, as you will have better opportunities after pursuing PG. It is one of the best branches, why are you thinking about M.Sc? Regarding the question, yes you will get the admission. All the best.

I am not sure about it as I am from a different stream but to help you out I am giving you the phone number of food science department below:
Prof. Sheel Sharma(Food Science & Nutrition) Phone: 01438-228341, Extn. 336.
You can contact her any time between 9AM - 4PM, except Tuesday.
Please do check once. Thank you.