In civil eng which specilaization is good for gov job...for mtech in civil department. ..Env; transporation: water resource eng;...
Abhinay actually all 3 of the branches are good and it more depends on from which college you are pursuing your M.Tech degree. If you ask me in terms of M.Tech in the civil department then I will keep water resource engineering above the other two environmental and transportation engineering branches because water resource engineering will need the skills of a civil engineer while the other two are more inclined to chemical and mechanical engineer respectively.
Feel free to ask if you have any more queries. All the best!!