CBSE 12th

No you must think other option

If you are not interested to join medicine that is MBBS, HMS, BUMS etc yyou can go for pharmacy, biotechnology, opthology, genetic engineering or in pure science with zoology or botany as a main in your BSc, even you take do BSc with chemistry or physics too.

You will get a good collage

You will have to join some film institute. Please find below some suggestion:
> Whistling Woods
> FTII
> SAE
> Digital Academy
> ICE
others

There are many options available for you where you can get admissions.i totally depends on your interest that in which you want to get admission.here are some of the disciplines which you can select based on your interest:
1.Engineering
2.B.SC
3.BBA
4.B.COM
5.BA
6.Fine arts
7.Hotel Management
but it is suggested to go for some good institute to pursue your career as the reputation of college matters a lot in placements.Here are some of these colleges where you can get admission:
1.IITS
2.NITS
3.BITS
4.Lovely Professional University
These provides an assured placements and even give you the platform to flouish your skills.

There are many options available for you where you can get admissions.i totally depends on your interest that in which you want to get admission.here are some of the disciplines which you can select based on your interest:
1.Engineering
2.B.SC
3.BBA
4.B.COM
5.BA
6.Fine arts
7.Hotel Management
but it is suggested to go for some good institute to pursue your career as the reputation of college matters a lot in placements.Here are some of these colleges where you can get admission:
1.IITS
2.NITS
3.BITS
4.Lovely Professional University
These provides an assured placements and even give you the platform to flouish your skills.

Hi Sayan,
50 is too low a score in JEE Mains. However, you may use the below college predictor for more details:
https://www.shiksha.com/jee-mains-college-predictor
Most colleges have a different provision for admission. You need to contact the institute officials personally for specific admission details as it differs from one college to another.
Hope this information helps. Please feel free to revert.
Wish you luck.