My brother did his M.Tech from NITC. Here is his insight into the general placement scenario for MTech at NITs. 

Over the years it has been seen that the placements for M.Tech students are comparatively less as most of the companies demand B.Tech graduates as the freshers or even experienced candidates. However, in some cases, M.Tech students are considered, like in research and development-oriented jobs. However, most industries prefer B.Tech over M.Tech. 

After pursuing M.Tech your area gets narrower due to which the situation becomes very tricky for both the employers and the candidates applying for. As far as all the colleges are concerned the placement statistics are not so good for M.Tech students.

In the recent placement drives, the average CTC offered at NIT Warangal, NIT Trichy and NIT Surathkal were respectively 21 LPA, 6 LPA, and 11 LPA.