Dear Aspirant 

No one can guarantee 100 placements but yes if you persue your master of science or master of technology from Indian institute of technology then there will be higher chances that you will be placed. So placements depend on how you have done your masters, ie percentage or cgpa you scored, academic background, communication skills, technical knowledge or skills needed to get that job. So try and work hard to reach iit for master degree. 

Good luck for your future :) 

Feel free to ask if you have any further queries.