Hello VSP

If you are getting 78 marks in EE and that too in OBC category then congrats man you are not only eligible for top IIt's but also Top psu's. 

In Almost all PSU's you can get shorlisted not considering the selection as it is also based upon your interview part.

Few Psu's from where you can get shorlisted are:

NPCIL

BEML

BHEL 

CEL

NTPC

GAIL

MDL (100%)

NLC

POwerGrid