how should i proceed or prepare or study which & what to get selected in IIST

Dear gnanender aryan,

If you prepare for IIT-JEE Seriously then you certainly can crack ISAT & get into IIST !!

So,work hard & reap your rewards ....!

Hope this helped you immensely...

All the Very Best & Good Luck to you dear...

Regards,

AskIITians Expert,

Godfrey Classic Prince

IIT-Madras

Please approve my answer if you liked it by clicking on "Yes" given below....!!!