I am using BSNL from about 1 year and now I realized that BSNL is the poorest network I have ever seen. I know the plans are very cheap and affordable but the speed of their 3G network is exactly the same as 2G network of Airtel. Calls always gets down every time! Poor customer care service. This network is not good for you if you like to travel or you are an agent of a company because its network always gets disappear when we go to any other state or city! Dont go with BSNL!