CBSE 12th

With this rank in JEE you can apply in NITs. You may get any NIT. If you don't get then you can apply for any good autonomous college. You will definitely get admission there.

For MBA admission lots of business school criteria is 50% and 45% for other category and few MBA college consider 60%. At the time of placement some companies' criteria is 60% in 12th and graduation but some have no criteria. Do not worry and prepare for MBA without any hesitation.

Yes, you can choose B.Pharma for further studies.

Yes, you can join fields like aeronautics, biotechnology, mechatronics, mining, etc. These are some good practical branches in India for engineering.

Hi Ayush,
Please specify your subjects and also your interests. You have to know your aptitude, likes and dislikes. You should also check this guide to help you match your interest with desired programs:
https://www.shiksha.com/careers/opportunities

Hi Atul,
The eligibility criteria varies widely, getting into a top college in India will be next to impossible since the cut-offs are high however it depends on what you want to study. Certain courses require entrance exams like CET etc., if you do really well in these tests you do have a chance. Try not to secure less than 60% for better outcome.

Hi Ankita,
You can consider doing your B.Sc now or look for options abroad. Too long a gap will not be a good idea. Contact the colleges directly regarding the admission requirements.

Hi Swapna,
It can be regarded as a combination of science and psychology. Consider reading this article:
https://paranormal.lovetoknow.com/How_to_Become_a_Paranormal_Investigator

Hi Subhashini,
Find below the link to Shiksha's the finest college predictor which will help you know the various colleges, streams you may have a chance to fit in:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor?utm_source=connect&utm_medium=CR_JEECP&utm_campaign=7489993
Wishing you all the best.