Hey Aruna.

See u r from one of the core branch in the engineering discipline which itself creates a huge no of competitives. The marks u have scored is enough for u to get admissioned in the NITs for pursuing ur further studies but might not be sufficient for IITs.

There are many good NITs for pursuing the mtech degrees. U may also apply for the IITs but not the old ones. See anything can't be made for sure since the paper this year was bit changed. Hope for the best.

I hope this helped u. Ask me if u are having any query.

Good luck