Tata docomo is not a good thing network operator this is fail in every areas it's network coverage is also bad any where I got no proper network access and it's network drop many time I use this sim connection only three months but now do MNP in other network operator
It's costumers services is also bad all services is totally worth and bad its network and 2g/3g services is going slowly and slowly one site open faster its many times show connection failed so it's services not working properly
It's charged very high and call rates also expensive to comparison other network operator and postpaid user get a heavy bill so it's charged also costly
So don't buy Tata docomo sim card