I have Tata Docomo sim and I am using it from since 5 years. It's a very good mobile operators. I nevered face any problems. It has a very strong network coverage. Tata docomo drow new offers every time for his customers. Here we can see very wonderful offers. Call changes are also very pretty. Up to till now company have nevered froud with me about any charges. It's 2G services are very satisfying to me with nice data speed. Its data plan is also very good. I suggest to all my friends and to all the public, It has very good plan and services you will be satisfying with it. Its customer services are also very nice, they used to give good and nice services.