I am sandeep from delhi Ncr I use airtel network not good airtel network because 4G signal always gone automatically come 3G I am face many problem this network airtel 2G network is good for calling but internet for bad speed signal not available every time I bought 6 month ago airtel network I am like this network 2 days not seen singnal my friend sussgest bought vodafone network yes I am verry happy this network but airtel network is bad I request to pls upgrade your network thank you so much