No IIT has department-specific placements and usually open to all placements are done wherein companies allow students from different branches to sit for placements. There are only a handful of core companies that discriminate between students of their branch and other branches not letting them sit for placements.

So MTech placements usually mean competing with a number of students from different branches for top companies like GE, Bosch, or Texas Instruments. Most visiting companies are software companies that allow students from most branches to participate.