CBSE

This rank is enough for your admission in government colleges. You are eligible for getting a merit seat in government engineering colleges.

One of my friends is in jet airways and she also passed out from frankinn I believe.

Hello,
Hope you are doing well. No, you are not allowed to get NITs with 152 marks and 64.8% in CBSE because you are from general category and your marks do not satisfy NITs cut-off offered for general category. You can try for some other colleges which accept JEE Mains paper 2 score and ranks.
NITs won't be possible for you.
All the best.

Please indicate your state of domicile.

Since admissions in engineering/medical colleges on an all India basis are based on central open tests which are based on CBSE syllabus so it's better to study CBSE after 10th.

You can use this link to check out your chances of getting this college. This is shiksha's official college predictor tool based on previous year's data.
https://www.shiksha.com/architecture-planning/colleges/b-arch-colleges-india

Hi,
The merit score needed for admission to B.Arch is 80.95. So, your admission will be difficult as they require higher scores.
Best of luck.

Yes, you are eligible for scholarship, but universities will assess your profile and then they will give you a scholarship.

Yes, there are chances of you getting it, provided you mark Presidency University as the first preference at the time of option entry.

No, it's not a wise idea. Go for coaching along with your studies. Both have the same syllabus. A proper mock test will help you get a good score along with your studies.