Hello,

According to 2019 cut offs those candidates who had applied for MS program they are shortlisted for M.Tech only. In the interview round/direct admission time you have to choose between M.tech and MS programs if the comittee agrees then you will be enrolled in MS program. For direct admission a candidate must have 85+ percentage in gate for general candidates and if you have shortlisted in interview round then you must have 75+ percentage in gate.

http://www.cse.iitd.ac.in/~srsarangi/mtech/2019/index.html

you can visit the above link in order to see the scenario.

all the best!!