hey Mate there are many courses you can opt from XE few mentioned are

M.Tech in IIT KHARAGPUR
Cryogenic Engineering
Climate Engineering
Rubber Technology
5- Ocean Engineering

M tech in IIT MADRAS
Mechanical Engineering
Mechanical Engineering
Aerospace Engineering
M tech in IIT MANDI
Mechanical Engineering(Energy Systems)
Energy engineering(Materials)

other IIT's that offer courses are IIT-D,IIT-B,IIT-BHU,IIT-G

For more detailed information on prediction of courses you can use below links

https://engineering.careers360.com/exams/gate