Tata docomo was my first choice as a mobile operator. Initially it provide good service with a good network coverage & good internet speed. But later on it increased its tariff plans & call rate charges. Compared to other mobile operators, it started rolling out tariff plans that were on the higher side & that with high calling rates. So I had to change my mobile operator for good.
Pros
Good Network Coverage
Good Internet Speed
Cons
High Call rate
Costly Tariff