Tata docomo is good network and one of the cheapest network it provides plans at very low cost like at 499rs -2gb 3g data and 300rs balance.it has no hidden cost.it has network problem in some rural area.bt it has establushwd the brand and continous improvement is done.i am using docomo network from past 6mnths and dont wana change it.so I wud give 4stars and a thumbs.it is good for middle class people.must use for cheap internet usage