As airtel promises their best network
customer service support
internet
international roaming
and other services
no doubt they gives their best to fullfill this
honestly it was so awful when I was a reliance customer
but from the moment I port in to AIRTEL I feel relaxed .
call drop never happend in whole timespan of using airtel
five stars to the everything
and also we are using airtel braodband as well its little bit high than regular local braodband companies but yet it the best provider
if we ever face any techinal issue it always get resolved in the same daY .
SO I WOULD SUGGEST PORT INTO AIRTEL TODAY