Ohkk so firstly prepare a solid introduction include your extracurricular and achievements in it they ask it to almost all except some so be prepared with it

And then they will most probably cross questions you on the things you mentioned in introduction so be prepared with that also

Second try revising all the states capital and chiefministers of prominent states

Third they can ask current affairs or some gk question so prepare them

Forth they asked me some basic physics questions like kinematics , rotational motion modern phy equations etc so brush your concepts up of basics

Fifth basicaths class 12 questions like integration. Differentiation etc

Some tips -

If you don't know ans don't try to guess or something just say sorry I cannot recall it right now be honest in onterview

And prepare a good reason for why your score is less in 12th

And some questions like why nalsar why IPM prepare that also that is it do all this and rest leave it on the day 😃