Computer Science and Engineering

Yes probably they check for Sat scores.

Yes, you can study marketing further.

I think in national colleges there will be no fee to pay, just the thing is to score good whatever entrance exam maybe.

Dear friend if you are much interested in Chemistry subject, then I would recommend B.Tech in Food Technology. Else, you can go for computer Science and engineering. My friend did B.Tech in CSE from LPU as he was not much good in Chemistry. I recommend LPU for both B.Tech in Biotechnology and B.Tech

You can but you will have to prepare for JEE and after clearing it you can get college according to your rank in JEE.

Above 250 should be your aim.

Have you tried parul university Gujarat? It is one of few colleges which is taking into account the new education policy which allows student from any background to do B.Tech. If you decide on anything please let me know because I am also thinking of something similar
I am also a pcb student.

Yes you can.
Don't lose hope.

Hello Devendra Koppikar, yes, colleges in India have some special arrangements for giving admissions to citizens of other countries. However, every university has different models when it comes to OCI cardholders. You will need to ascertain from the website about the details. Best wishes to you.

Hello Suyash Patil, yes indeed. This college is reasonably okay. Best wishes to you.