In my opinion.the sevice of airtel is becoming poor day by day.i used airtel service for long time but now I port it to vodafone.one thing that create most of the problems is the network coverage of airtel. its coverage is soo poor that most of the villages and towns have no network.even I was very suffered from this problem whenever I go to my village . the net recharge plans of airtel are very expensive and give low data as compare to other operators.its 2g speed is not so fast in comparision to other operators.its 3g speed is good but rcharges are expensive.so guyz think if u r an airtel user.how to reduce ur bills.