Engineering Entrance Exam

Hello Avinash,
Your AIR is about 1.40L. Do you know all govt colleges put together how many seats are on offer? You want best govt college then you must obtain best marks and AIR below 100.
I suggest, you take a break, study well and appear next year again.

You can get SGSITS College of Madhya Pradesh. It is a government college.

There are many good engineering colleges in Indore, Bhopal and Jabalpur. You can look for any of the engineering college in Indore, Bhopal or Jabalpur.

It won't be a good decision to take one more drop for JEE. Its better to join a decent engineering college through your JEE Mains score. Because drop will affect you in your career in later stages if you are not able to clear JEE next time. So, in my view, you must join a engineering college this year.

It will be difficult for you to get into Nirma University with this score.

Yes, you can get it but you have to study B.Tech first year again.

Sorry dear, but 21 marks are not enough to grab you any govt. college.
You should try for any private college which offers admissions through direct means instead of JEE Mains rank and score.
All the best.
Please upvote my answer.

For the candidates to qualify for the admission in the IITs/NITs/IIITs and such other CFTIs whose admissions are based on the JEE (Advanced)/JEE(Main) ranks, they should have secured at least 75% marks in the 12thclass examination, or be in the top 20 percentile in the 12th class examination conducted by the respective Boards.

You won't be able to get any government college with this marks.

You won't get any decent college with this rank. Try other entrance exams if you have applied for any. If not, you can drop a year to prepare well but only if you are determined to work hard.