Physics

60% marks in class 12th are required. 60.4% is enough to take the admission.

Greetings, All the 3 subjects viz. Maths, Physics & Chemistry are good options, and you can choose anyone of them, depending upon your interest. All these three subjects are equally interesting subjects. The liking varies from student to student though. Regards.

Yes, B.Sc courses are offered in Physics.

Please check for your eligibility to pursue M.Sc Chemistry from the criteria mentioned at the link provided below:
M.Sc Chemistry: Eligibility:
As a minimum criterion of eligibility, aspiring candidates need to have completed:
Higher and Senior Secondary levels of education (classes X and XII) with a minimum aggregate score of 60% marks. Graduation (B.Sc. with Chemistry as one of the main subjects), with a minimum aggregate score of 50% (45% for SC/ST candidates). Often, candidates are required to qualify as an institute, State or national-level entrance test for admission to M.Sc Chemistry course. Regards.

You need to have minimum 50% marks for admission in B.Sc Physics.

Hi Shubrat,
Yes, you can get admission in M.Sc. (Bio and Physics) at the Pilani campus and Goa campus. Moreover, you may get a call for admission in any of the subjects at the Hyderabad campus.
For more information, please go through this link about the cutoff scores:
http://bitsadmission.com/cutoffscores2017.aspx
Best wishes.