CBSE 12th

Dear Manish, The following are the best courses after 12th commerce with mathematics other than BCA:
B.Sc (IT)
B.Sc (Computer Science)

Hey, I would suggest you to go through this link and fill out the required details
College predictor in Shiksha to predict if you can get admission in College of Engineering, Pune - B.Tech. in Computer Engineering
https://www.shiksha.com/college-predictor.
Hope this helps. !!

Hi, I would suggest you to go through this link and fill out the required details
College predictor in Shiksha to predict if you can get admission in mbm Jodhpur. https://www.shiksha.com/college-predictor. Hope this helps. !

After 12th many fields got opened. First sees which thing makes you more happy. Whether it's machinery or academics or research. Then only see what you have to do for them. Dear Abhinav just a bit a little google work can help you alot. Plus take guidance from your school teachers. Nowadays you can find a counsellor as well.

Sorry. No you can't get a government seat. Try for private colleges.

Yes, you can join B.Sc. Or BE for forensic Science.

Simply, you can google for B.Sc. Embryology equipped colleges and you may apply when the applications for the respective course is invited through your preferred colleges
Eligibility of applying for all UG courses are class 12th, so you may apply for it after 12th.

A minimum of 12th marks always matters for applying ahead, even it's entrance based
In merit based applications, you need to have good marks in class 12th for getting a college of your preference.

Yes Statistics would be treated as your replacement to Maths most probably as the same occurs for several other colleges. Best of luck have a nice day.