One of my friends graduated from KIIT and here are some things regarding your question, I got to know from her.
I can share the laptop specifications for the year 2019.
KIIT will provide you free service on any problem with the laptop other than damage dealt by you for which you have to pay for the service.
You need to have scored 60% on average in Physics, Chemistry and Mathematics combined in 12th, in order to be eligible for KIIT University B.Tech degrees. For final admission, KIIT selects students based on their KIITEE score.
So, if you clear the required cutoff, you can get into B.Tech at KIIIT University through counseling.