Hey Ramakrishna.

See the marks u ahve scored is not enough for u to get good colleges like NITs and IITs for pursuing ur higher studies in the field of ur interest. U should be opting the state colleges and other private institutions for ur admissions which accepts the low GATE scores.

I m providing u a link of college predictor. Hope it might help u in this.

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