Tata docomo is very very bad netowrk connection than other. 1st time I can use tata docomo network they are gery fast in 2g as other network.
But sometime later I can face some problems like network is less and tata docomo show you van roming 1st I use tata docomo 5 months and 5 months later in roming I can’t undustand this and my balace callrates is very highly charge by tata docomo this reason I can hate tata docomo network and I can use another network card for my use.