Hey friend! Airtel is very good operator. Well im currently using Airtel. I just love this network coverage of Airtel. I always find network of Airtel. Customer service is also good. When ever I have problem with my sim card or any thing they give proper answer to my query they solve my doubt they coordinate. And also their data pack and calling charges are very less due to which I get low bill. But they have high tax and service charges due to which it extend my bill more 100 rupees. Same place if we have prepaid sim all the packs are useful and of low rate. In all I love airtel prepaid. Not post paid. Thankyou: );