With an M.Tech (Elec), yopu can join as a Lecturer in a Polytechnic,or an Assistant Lecturer in a NIT/IIT etc and then ,on completion of Ph.D,become an Assistant Professor.
You may also join the Civil Services , or the Indian Engineering Service.
If you are a real problem solver type, you might end up getting very good offers from Start Ups lookimng for topnotch brains