CBSE 12th

Maths is not compulsory to secure admission in Bachelor of economics. Eligibility for BA in Economics is mentioned below:
The minimum criterion of eligibility needed to be met for admission to the course is a 10+2 or equivalent qualification from a recognized institute/ university with a minimum aggregate score of 50. Candidates awaiting their final examinations results are also eligible to apply on provisional basis.

Yes, of course. Anyhow, you have to study Maths in B.Com as well. Mathematics students do have an advantage over others in B.Com.

Amity Delhi is also known as the Amity University Noida. The eligibility criteria is of 60% minimum marks in 12th in PCM + English.

Leave the subject maths. Please mention you are interested in biology and chemistry. If yes, go for it
Manipal University, Amritha University and JSS University are my options. I am a graduate in pharmacy from JSS.

Dear Anshuman!
Yes, you can do this. Under the integrated programme of Management, some university offers this course also.
Good Luck.

There are may options for biology student like:
MBBS
dental
pharmacist
genetic engineering
BE in biotech
bioinformatics
B.Sc in forensic, microbiology, biotechnology, biochemistry, zoology, botany, agriculture, bioscience, life science.

You can definitely get a call form the top colleges.
All the best

You have decent chances of getting a call.
Good luck.

You have decent chances. Kindly apply with CAT, XAT scores as well.