Tata docomo is the cheapest and best mobile operator in India , it really provides std and local call rates at very low price , even the data services provided by the docomo is also very affordable n the network of docomo is really awesome , even in the rular ares.
I am using docomo sim card from 1 year and I m totally happy with the services of docomo that they provide n the customer care response is also very good
Thank u docomo , really love u