Hey Bharath.

See the marks u have scored is pretty good enough for u to get a seat in the good IITs for pursuing ur higher studies in the field of ur interest. U can also apply for other good state colleges for ur MTECH career. About the PSUs u havent provided the branch in which u have given this exam but with ur marks it can be said that u can get call from some of the PSUs for sure.

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