TIFR released the answer key of computer and system science paper along with shortlisted candidate list for interview.
Link for answer key: http://univ.tifr.res.in/gs2018/Files/GS2018_QP_CSS.pdf
Shortlisted students list: http://univ.tifr.res.in/gs2018/Test_Results/INT_Shortlist_CSS.htm
If anyone shortlisted for the interview then please comment your marks.
According to answer key my marks is 58 but not selected for the interview.
Did you get interview call?