B.Sc

No, you are definitely not eligible. You have to have Physics for 4 semester and Mathematics for 2nd semester in B.Sc. There is no restrictions on +2 subjects.

No, the only language which is there is English.

Hello Manali, You could pursue a courses related to the field that includes:
M.Pharma
Clinical research / Trials
Genetics
Radiologist. PG Diploma in Microbiology. Medical Microbiology
Molecular biology
Biochemistry
Food Microbiology
Else, you can join the research department or labs of various industries li

Yes, biology is mandatory for B.Sc Agriculture.

Hello,
I would suggest you to go for IIT JAM study materials. You will get all the preparation stuff you need including unit wise notes and questions, important topics, previous year papers and many more. Here http://bit.ly/2ICKyE9 you can check who provides the best study materials for IIT JAM prep

Dear Anindita,
Optometry is a HEALTH SCIENCE course. The eligibility criteria as per UGC is 12th Science (preferably Biology).

No, it is not possible. You need to have Maths as a compulsory subject.

Hello, yes integrated courses are helpful, however it is really tedious to study both subjects in a assorted time, plus semesters are really tight. Good luck.