JEE

I am taking into consideration that you are in general category
So, as you have scored 46 and cutoff is 81 so basically, you have not cleared JEE Main but this is not the end, you may get admission in various engineering private college which use 12th percentage and JEE marks for admission. You may a

Hello Mohit,
As per your marks, your chances are very slim for getting any NITs. However, check here for more insights:
https://www.resonance.ac.in/reso/news/JEE-Main-Branch-Predictor.aspx

Hello Anshu,
It's a very good question that you have asked. Once upon a time, cost of studying in IITs & NITs was very low. But now it's almost Rs. 1L. Some state govt colleges charge a little less.

On the basis of your JEE score, you are not eligible for admission in MIT.
I would suggest you to keep on trying in private colleges for direct admission on basis of 12th percentage.

Participate in JEE counselling and choose an appropriate branch. You will get an NIT easily.

Your mentioned score in JEE Mains will not help you to get a college.
Now, you have two choices left.
Either take a drop to prepare for IIT-JEE or take admission in any private college with direct means (management quota/donation).

You can only hope to get this college in spot round. Else, no.

Yes, you can get admission in NIT on the basis of JEE rank only.

Getting NIT with this rank seems difficult. But you must try your luck till spot round counselling because there might be a seat available in some low rank NIT. And yes do try for IIIT, you will get one with this rank.

Hello Lokesh,
To pursue CSE from Thapar University, you need to score more than 150 marks in JEE Mains.