Airtel — worst service by airtel network

Airtel is fast becoming worst mobile network service provider in india, being with airtel for more than a decade as it was the best service provider in the country but from the past year or so we don't get proper reception at most of the places and day by day it's services are getting deteriorated.
7 out of 10 calls doesn't connect most people say they are unable to reach you on your mobile you cannot even call 121 or 198 taking your frustration levels to peak.
Finally making a decision to move out of airtel to something which would work.