Dear Anu, there might be many reasons involved into getting a placement structure in any College/Institution. It is a collaboration between the Institute involved and the Companies. The Companies should have requirements for the positions or projecta that they want to hire candidates in. Only those companies which jave requirement in that field will come for Placements. But for that they will need projects. Though there are positions available, the students should have acheived the CGPA target set by the Companies. For example, ISRO used to recruit M.Tech Candidates directly in the beginning. Slowly they introduced the CGPA ratings as in there is a particular CGPA that you need to score if you want to get into ISRO. They started it with 6.5 and now it is around 7.5 CGPA if you want to be considered by ISRO. Sometimes the Placement cell fails to draw recruiters for placements. So we cannot point out one reason as why there have been no placements. Having said that, opportunities in India for Material Science are less. Thise companies which have Space and Science projects hire candidates on a need basis.