Hey Bhawesh.

See the marks u have scored is not enough for u to get any good  colleges like NITs and IITs for pursuing ur hiher studies in the field of ur interest. U should be going for other state colleges and private institutions for ur MTECH career.

I m providing u a link for ur 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