Hello everyone currently I use the airtel network. Very good network all over the india. I use 2 simcard. Both were airtel. Every person suggest me to use other simcard. But airtel is very best in all sector. Airtel network are very good. I think many people can use airtel and they are very beneficial. Airtel network are all over the very good. There customer service are also very good. If we have problem releted to airtel.or we contact with customer care.they are very give satisfy answer releted to question. We also satisfy with that.there charges are also available in low range.so we can easily available. Billing sector are also low. I am very satisfy with airtel.