Iam currently an user of tata docomo in mumbai..earlier I had dolphin.. iam pretty happy wid da network of docomo.. it haz a pretty decent, above average network even though itz a new comer in da gsm business.. Outdoor coverage iz excellent..in 95% areas of the city, I hz full network..
But as far as indoor iz concerned..da signal strength gets lowed down..although we can make clear calls in 1 bar signal also..customer care ppl r tellin 2 wait for more 2-3 months for excellent coverage..Sometimes I do face problems in sending sms... and as far as da tarrifs r concerned itz unbeatable..I earlier had mtnl dolphin, it had an excellent indoor nd outdoor coverage throughout da city, da only reason for my switching to tata docomo wz da tariff..Im sure dey will give deir best network in da cumin months...