Hello Monika

As you know the cutoff for SC category is 26.4 this year and you have a pretty decent marks of 52 so chances are there.

I can't say surely  but you can get a call for the interview from various PSU's like ONGC, HPCL or even NTPC.

PGCIL and Powergrid will be little tough. Just be updated with the cutoff's for all the PSU's.

There are high chances that you can get in HAL, BHEL, NLC, HPCL, PGCIL and more!