Yes IIST offer undergraduate as (btech), (mtech), and PhD program in space science and technology and also it is for research center also, basically it is the first university in Asia. Program offered as IIST are in streams as engineering and science with on aeroscope. Candidates are offered admission in btech programs as IIST on the basis of performance in jee main and advance.

Now for belongings general candidates got 20% marks in aggregated and 5%in phy, Che, and maths in jee advance. 

For OBC categories candidates should secure 18%marks in aggregated and 4.5%in phy, Che, maths in jee advance.

For SC/St 10%in aggregate and 4.5 in phy, Che, maths.

So this is eligibility for going in the IIST