As you want to get the details of career options after M.Tech in Civil Engineering so here is the information of the same for you:

Job profiles after M.Tech in Civil Engineering:
Various job profiles available for candidates who have completed their post graduation in civil engineering are listed below.

Civil Engineer
Construction Plant Engineer
Construction Project Engineers
Junior Civil Engineer/Technician
Planning Engineer
Project Coordinator / Project Engineer
Senior Engineer
Site Engineer
Teacher

Career in Public Sector after M.Tech in Civil Engineering:
The leading organizations recruiting post graduates in civil engineering are listed below

Bharat Earth Movers Limited
National Thermal Power Corporation
Power Grid Corporation of India Limited
Bharat Heavy Electricals Limited
Bharat Sanchar Nigam Limited
MMTC Limited
National Fertilizers Limited
Bharath Electronics Limited
Cement Corporation of India
Hindustan Paper Corporation Limited
Hindustan Zinc Limited
National Small Industries Corporation Limited