I dont think you have to do the class 2 again since you already have an expired class 1 medical
The class 2 medical is only for someone who has never held a class 1 before
I dont know about MEC Jorhat but IAM Bangalore and AFCME do all the tests in house and you dont have to bring in anything from outside .
Only if your tests show some result which causes them to investigate further would you might need to go outside and get it done ( eg : MRI scan )
Anyway they will let you know in advance
AFCME and MEC Jorhat reply via email
IAM Bangalore needs a written request with a Rs 50/- stamped self addressed envelope
Tell them you want to do the Initial medical ( not renewal )