Engineering Entrance Exam

Which board? If CBSE then your marks are low for IIT, NIT and IIIT. A minimum of 75% required for these for a CBSE board student.

Hello Narshima,
According to your marks, you will surely get a good branch in any IITs. However, check here to get more insights:
https://www.shiksha.com/b-tech/resources/jee-advanced-rank-predictor

Hello Parthiban,
Congrats on getting a cut off marks. The top three on your list namely CEG, MIT, and SSN are better when compared to RMK. So, you can prefer the first three:
In all those, the placements are really good and they also have a good reputation.
So, you can go for any one of those three.
I

Hello Dheeran,
You need to score at least 75% marks in your board exams. Otherwise, even if you qualify JEE Main and Advanced, you cannot get any NIT or IIT.
So ,you cannot get any NIT or IIT as you have only 71% marks.

Hello Suraj,
As per your rank, you will definitely get good colleges, however, check here for more insights:
https://www.shiksha.com/b-tech/resources/upsee-college-predictor

Yes, you can. IITs don't have any interest in the college you opted for UG. They only consider your GATE score.

Sorry, but you cannot appear for the JEE Mains exam as it needs 75% or above, but you can appear for NDA exam.

Probably you may fetch a seat as some colleges have their closing rank near the rank you have secured.
All the best.