Hey There, I Am Using Tata Docomo Connection( Kolkata) For Last 5 Years. Tata Docomo Provide A Great Service In Kolkata. Its Rates Are Cheap & Friendly. Its Best For Youth Users.
Pros: -
1- Call Rates Are Cheap Other Than Any Operator.
2- They Providing Good Internet( In 2g Speed)
3- Easy & Cheap To Get A New Connection
4- Customer Service Are Superb
5-They Wont Deduct Youre Balance Or Any Thing Anytime.
6- Very Trustworthy
Cons: -
1- Network Fluctuate Sometimes. I Have Facing problems In Network In Some Specified Location.
2- Kolkata Circle Dont Have 3g For Tata Docomo. That Is Real Bad.
Although Tata Docomo Is The Best In Class. They Providing Good Service In Very Healthy Rates. Loved It.