Science

No, you can only take one course or can combine botany or zoology but not chemistry.

Check the list of all B.Sc. In Physics colleges/institutes in India listed on Shiksha at the link provided below. Get all information related to admissions, fees, courses, placements, reviews & more on B.Sc. In Physics colleges in India to help you decide which college you should be targeting for B.Sc. In Physics admissions in India. https://www.shiksha.com/science/colleges/b-sc-physics-colleges-india.

Eligibility for B.Sc. In Forensic Sciences:
The basic criterion of eligibility needed to be met for admission to the course is a Higher Secondary (10+2) or equivalent qualification from a recognised educational Board, with Physics, Chemistry and Biology and/ or Math as main subjects and a minimum aggregate score of 55%. However, a few private universities in India conduct their own entrance tests for evaluating and admitting students to the course. Once notifications for these entrance exams are out, you can apply online or offline to these institutes for admissions. Regards.

You can do Masters in Tourism Management from IGNOU.

IGNOU offers a Masters in Tourism Management. You could try that. It's also a distance course. So, you could do it part time.

Check the list of all B.Sc. In Biotechnology colleges/institutes in Meerut listed on Shiksha at the link provided below. Get all information related to admissions, fees, courses, placements, reviews & more on B.Sc. In Biotechnology colleges in Meerut to help you decide which college you should be targeting for B.Sc. In Biotechnology admissions in Meerut. https://www.shiksha.com/science/colleges/b-sc-biotechnology-colleges-meerut.

No, you can't fit into IISER.

Please check for your eligibility to apply for admission to B.Sc. in Agriculture from M S Swaminathan School of Agriculture, Centurion University of Technology and Management, Paralakhemundi from the criteria mentioned at the link provided below:
https://www.shiksha.com/science/course/b-sc-in-agriculture-m-s-swaminathan-school-of-agriculture-centurion-university-of-technology-and-management-paralakhemundi-orissa-other-285739

Hi Priti,
You cannot enroll in three different degree programme simultaneously. It is not even recommendable. Thanks.