Recently I had worst service experience with tata docomo. I am using SIM of tata docomo with internet connectivity. In last week, to my surprise, two times I felt that my balance was reducing at a much higher rate. Once it was reduced to zero and another time just after my recharge some rupees were deducted. When I inquired about this with service center they were not able to give any satisfactory answer. Moreover they blame me that I might have downloaded something....so pathetic...I have decided that I will switch to some other service provider.