Engineering

Actually, we don't know the marks. We know the rank. Last year closing rank in heritage for CSE after 3rd round is 5030. According to JEE Mains, closing rank till 3rd round is 37364.

Kalyani University is a government college. And, Heritage Institute of Technology is a private College. Placement scenario in heritage is about INR 3.3 lakhs per annum for CSE. I think, campus life in heritage is awesome. I think, you should choose heritage in CSE.

Hi
As you scored 53% and you belong to SC background you can get admission in any of the colleges. But it is difficult for getting admission into NITs and IITs. as per new rule , the new eligibility criteria for getting admission in NIT is having minimum 75% in board 12th exam and the merit of this y

I don't understand your question very properly because you did not tell that in which standard you got
66 percentile like in 10th or in 12th. Also, you have not mentioned your merit rank if you are a student of 12th.
If you got 66 percentile in 10th you will not get admission specifically in computer

Yes, 280 marks is a decent score. Use Shiksha College Predictor to know the college you can get.

Yes you are. You might even get your preferred course.

Yes, you can start your preparation in general knowledge, reasoning and aptitude for IAS exam.
These will also help in increasing your IQ at the time of engineering.

No, because the closing rank for CSE in HIT after the 3rd round was 5030 last year.
So, you will not get.Try for other colleges.

If you are confident enough to crack JEE, then you can go for 2nd attempt. If you have missed by a small margin to get into top 10000 rank. If you get rank under 10000, good chance of getting into IITs or NITs/IIITs. Also, a 2 year gap in education will be questionable going forward during job inter