Hello Vignesh, 

Chances of getting into NIT's depends on your rank. You need to get atleast 33000 approx rank in order to get into NIT's in CS branch.

You can calculate your rank using the below rank predictor:

https://engineering.careers360.com/articles/jee-main-rank-predictor

You can also check the cutoff rank for different NIT's for CS branch from the below link:

https://engineering.careers360.com/articles/nits-cutoff-for-b-tech-computer-science-and-engineering

Hope this will help.

Helloo..

The formula to calculate the approximate predicted rank is :

(100-percentile)*874469/100.

If we apply your percentile in the formula your approximate rank will be around 61,200.

For this rank and your category you have little chances of getting cse in NIT. 

Not to worry you will be having one more chance in April. I request you to improve your percentile so that you will be having more chances to get the seat.

For detailed information about the closing ranks in different nits in cse branch please visit the link:

https://www.google.com/amp/s/engineering.careers360.com/articles/jee-main-cutoff/amp

All the best...