I use tata docomo from last 2 years. very useful when call long time and surf and download. less tarrif and lot of offers when new. but the few years docomo will not consider the customers. lot of network fault and the hidden cost so much nonsense.
It was useful when you fall in love. other wise faulty.
the message booster have a first two message cost and calls have that first call cost if you booster pack.
lot of offers with that nonsense cost.
and the customer care also bullshit. lot of time feedback is zeroo.
Totally waste when you want permenant number.
It was just like that