Science

Yes, there are many job opportunities after M.Sc and you can even go for teaching profession.

Crack GRE then you'll get a good university for MS.

Hi,
Candidates must have a Bachelor's degree from a recognised university in home science or nutrition or dietetics or food science or biology or microbiology or clinical biochemistry or life sciences or BNYS (Naturopathy) or BAMS (Ayurveda) or PG Diploma in dietetics with a minimum of 50% marks in aggregate. So you are not eligible.

Hi,
The grand total fees of this course is INR 85,000.

No, it's not necessary but in mathematical questions are asked in the BBA entrance exam.

You can attempt any subject you like in PCMB. You just have to get a good score to get admission through IISER. It is up to you whether you attempt PCM, PCB or PCMB.

No, it's not compulsory. There is no best of 3 but your cumulative score is considered and there are several people who achieve a good score with PCM. However, by attempting biology your score will improve and your chance to get preferred IISER is higher.

No, it's not compulsory. There is no best of 3 but your cumulative score is considered and there are several people who achieve a good score with PCM, however, it's preferred if you attempt to bio improve your score.