My family has many phones hence I know a lot about different plans networks and details about many mobile operator and I am using it since 2-3 years.
I bought it on salesman’s recommendation but sooner I knew he was just doing his job as the performance wasnt as he said. I frequently had network drops and cross connection through calls. And when I reported this problem after giving so many temporary solutions they finally showed and then they planted a tower in the area ( beacause of so many complaints from there) and this happened after around 7- 8 months.
At that time 4g wasnt very popular too. But now I find no reason to use BSNL 3g ( if you dont they havent came up with 4g service yet ) . They offer rates at which others give 4G services.
As I told earlier I have access and little knowledge of so many networks and I would never recommend this network to anyone.