Hey, I am Abhishek . I have a tata docomo sim which in am using for 5-6 years. when the network in new they give many features. but now here no one can have a top up card of tata docomo. so everyone changed there network and getting new connection. I use to recharge by paytm . online recharge is now only system to use this network here. And another problem from tata docomo is they stop net connection in west bengal or on my district, darjeeling. its about so long that they stop the net connection. most probable all people of here change there connection for this. and they also using aircel network for there service . I am regret to tell that this is the very bad network for there service. I want a answer from the band tata docomo mobile operator. And do not like to recommend tata docomo .