Hi Vipul,
For medicine, NEET is compulsory. Here are a few tips for preparation:
https://www.careers360.com/question-i-am-now-in-12-what-are-the-materials-i-should-follow-to-get-mbbs
But if you are really not that interested to enter the field of medicine, there are various other courses and career options out there. As you're a student in Science stream, you can do various courses ranging from Science to Arts stream in the college you choose. I suggest that you pursue whatever field interests you. Consult a guidance counsellor in school or trusted education consultants regarding various options.
Some courses relevant to PCB streams are: B.Sc. Biotechnology, B.Sc. Forensic Medicine, B.Sc. Nutritional Sciences and many more.
Check out the link for detailed description about courses apart from MBBS and BDS:
https://idreamcareer.com/blog/NEET-2017-attempt-limit-alternative-career-options
I recommend that you stay updated with the news regarding applicability of NEET for various courses.
Hope this answers your question