There are certain psus that have recruited CSE as well as IT students. They are as follows

1)ECIL

2)IOCL

3)NFL

4)NLC

5)ONGC

6)PGCIL

7)BARC

8)BSNL

9)DRDO

10)GAIL

11)PSPCL

12)PSTCL 

Some of these companies have not notified the official procedure for recruitment of cse students yet .Please go through their official website for notification and check the previous years cutoffs for reference.