Class 12-science

You can go for any of the two streams to pursue law. But if you want to broaden up your options, go for science otherwise commerce is also a good option.

It can be a very good option to opt. For higher education and that too a Bachelor degree in a professional subject area can get good career when one gets back. Another thing is to take care that you don't do.it from a bad institution. Go for it if you get quality education option.

I am pleased to see your confidence.
Let us know your interest areas and inclination.
There are many job oriented courses available as UG and Diploma courses where the admission criteria is not very con-stringent for class 12 marks.

Its better to go for PCM along with Computer Science, as PCM is also important if you look for graduation in engineering after 12th. If you go for diploma than you will be very limited to computer Science course. In my view, PCMCS is better option.

Yes, sure. You can pursue B.Com as well as BBA.

Choose a path based on your interest, both are pretty good.

B.pharma, B.Tech in biotechnology, B.Sc in biotechnology, B.Sc in microbiology, B.Sc in forensic science, etc.
Good luck.

You can pursue B.Tech in computer science and B.Tech in any field you want but I would suggest civil, mechanical and computer science.
You can do BCA also.
Good luck.