I purchase a BSNL prepaid sim card just because of that it has low cost internet but it dont work properly every when you want internet on mobile phone . it shows full signal strength and also it provide connection symbol but it cant even open google.
Even whats app massage are take 1 hour to reach. So you guys are internet lover and want purchase a BSNL sim for the internet then dnt buy it because it provide internet plans but not provide the internet.
I recharge my phone 250 MB for month at end of month data still remain .so dont go to BSNL for internet purpose .