I am from MP/CG zone and a year back I got airtel sim. I am from a posh location of Indore and I barely get 2G/3G/4G signals. Most of my net packs were a TOTAL WASTE. Often the network is totally gone. I checked many settings in my handset but other sim cads work just fine except airtel. I have seen the same issue with other people also. Customer care is of ZERO HELP! Think twice/thrice before buying airtel sim card especially in MP/CG circle.