Hello Subhankar,

Congratulations!

Since you have achieved very good marks, You can easily get admission in IIT Kharagpur Civil Engineering Department. Currently 5 major civil engineering related stream course are available in IIT Kharagpur namely Structural Engineering, Transportation Engineering, Water Resources Engineering, Geotechnical Engineering, Environment Engineering. You can get Water Resources Engineering , Geotechnical Engineering, Environment Engineering for your M.Tech at this score.

You can check best possible option for you, using Career360 prediction tool.

https://engineering.careers360.com/gate-college-predictor

All The Best.