Dear candidate, I hope by ap you mean Andhra Pradesh. If you are inquiring about Andhra Pradesh then there are many colleges in Andhra Pradesh.

NIT ANDHRA PRADESH

IIT TIRUPATI

you can check this link given below for more information

https://engineering.careers360.com/colleges/list-of-government-engineering-colleges-in-andhra-pradesh

And if you are asking about Arunachal Pradesh

NIT ARUNACHAL PRADESH

check the link below for more information

https://engineering.careers360.com/colleges/list-of-government-engineering-colleges-in-arunachal-pradesh

Hope this helps