Hey Bhumika.

See the marks u have scored is pretty good for u to bag a seat in top notch NITs but might not be sufficient for ur u to get admissioned in IITs for pursuing ur higher studies in the field of ur interest. U can also apply for other good state govt colleges and private institutions for ur MTECH career.

I m providing u a link for help.

https://www.google.com/url?sa=t&source=web&rct=j&url=https://engineering.careers360.com/gate-college-predictor&ved=2ahUKEwjtgsq38ovhAhWDiXAKHSqhDr8QjBAwAnoECAgQCg&usg=AOvVaw1xiFTORDwDEpBZmadY5ZwG

Ask if any query. Good luck