Computer Science Eligibility

The eligibility for M.Sc Psychology-A student who has passed in BA or B.Sc Psychology Degree from a recognized university with minimum of 50% aggregate.
Students having any other degree such as Bachelor of Social Work (BSW), BA Sociology, B.Sc Home Science, BA Philosophy or B.Ed with Psychology paper

Please use the college predictor tool by Shiksha. It will help you to predict the college according to your rank/percentile:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor

You're eligible to apply as the minimum eligibility is only 50% and there are quite less chances for you to get admission in B.Sc computer science with that score in 12th.

It's difficult to get CSE in IIITs, but you can get other branches. To know more use the college predictor tool, https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor

Yes, you are eligible to take admission for B.Tech Biotechnology.

No, in order to pursue BCA or B.Sc in CS you should complete your 12th with PCM as subjects, then only you will be eligible to apply for those courses.

Know your college admission chances based on your JEE Mains rank, home state, caste, gender, etc., here:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor

Eligibility for pursuing M.Sc (Geography) is a pass in B.S (Geography) (3-years) from a recognised university. So, you are not eligible for the same.