JEE Main Scores

IIITs,NITs,CFTIs but you can try in any private in the basis of your jee mains score.

You need to score minimum 160 marks with good percentage in class 12th.

Yes if belongs to reserved category then he will definitely get cse in top state colleges and in lower nits too

I am sorry to disappoint you my friend but with the above mentioned score you may not get any decent government college but you can definitely get some other good private colleges like VIT, BITS, SRM etc for which you may apply. Also the placement in these colleges is quite good as almost all major recruiting companies of different branches visit these colleges.

Yes, you can do b.tech from ABES college
You can get your preferred branch in the college through direct admission also.

First of all congratulations on your grand success of getting 90% marks in CBSE as sometimes even jee advanced qualifier can't be able to do so. Now Defining about colleges depends upon factors because your marks can't cross the cut off but there is no need to get worried because you have a superb marks in cbse so there are many good colleges which you can adopt for so best of luck.

U can go for some government colleges. Or private colleges. Good luck.

Follow up this link-
https://en.m.wikipedia.org/wiki/List_of_institutes_funded_by_the_Central_Government_of_India

Btw 300000-500000

Yes if reservation