I don't know why people use BSNL network.there are many many problems in the network.towers are not available all day.i am just depressed with this network I will change my network soon if they will not be able to make good network.speed of Internet is always low like 2g instead of having 4g . BSNL should close their company is they are unable to provide true speed of internet.also mobile calls.when you look at your phone towers are always gone.if I call to customer care they tell check your phone settings.i don't know what to do.