All ok now, will update once bill is received, installation charge of RS 500 they will give as Rs 100 on each bill back,
For their instruement they were asking another Rs 200, which I refused,
Anyways airtel team who did the install was good, one person did wiring, other did connection to box, and 3rd one finally activated it 😛 took about 3 hrs, no fresh wiring was done, existing wiring was used.