Tata indicom one of the popular networks in some towns, I dontt know why becaus in many towns its network bars are always down.
There network coverage is just to poor. when ever you go into under ground rooms or out of the city the network bars just start to drop and as soon as you are in the middle of villages you will see no network bars on your phone.
So what if you need your phone in an emergency and there are no networks its just worst kind of feeling ever. now talking about there call rates, there call rates for tata to tata are good no doubt there but when it comes to other networks or std calls they just start to charge high rates and if your are giving this kind of network and these high charges for calls then I dont think so anyone will go for it. in simple words its just a pure waste of money