Airtel — complaint against call drop while using 4g

Address:	Nagpur, Maharashtra, 440027
Website:	Airtel.in

I am facing a problem regarding call drop at my address 'bajarang nagar nagpur'.
I used calling over 4g network. Network convert into 3g while calling. It doesn't matter. But it doesn't connect call properly or i can't hear voice and suddenly disconnected automatically.
I have complaint to customer care 2 times. But they didn't take action at all.
If my problm would not be solved i will complaint in consumer forum. I just talk to consumer forum they are going to take an action if my complaint would not be solved.
Thanks.