TATA docomo network was not so awesome but it was fine in cities and even some villages. Initially they had nice offers and cheap rates comparing with others but now recently the scene changed they are upgrading prices and becoming poor network not very poor but its poor comparing to airtel and vodafone.
As per my experoemce wiht TATA DOCOMO, it has increased prices in all the way with call rates/data/3g/roaming etc.
Request team should concentrate on network along with offers that users are requesting