Hi

First of all congrats on getting 55 marks, since you belong to general category 55 marks is good enough to get into Governments colleges for M. Tech. But at the same time it is insufficient to get you into PSU. Had you got 5 marks more you would have had good chance of getting into PSUs.

According to the previous year cutoff of various PSUs you can get into following PSU. You can try into this PSUs

1. AAI

2. NTPC