Airtel — network failure and call failure

Address: Gautam Buddh Nagar, Uttar Pradesh

I raised complain multiple times to airtel customer care. We are still monitoring you complaint.
Today i had very important business call. I had multiple time call failed. Even i didn’t speack to the person. Call failed more than 10 times. After all this i lost the business due to airtel bad network. I am using postpaid connection. Even i am paying more to the airtel. This is not worth it. If i am not getting the better network.
I just to sue them.
Where can i raise the complaint against the airtel?