BSNL 3G Mobile operator( India) :-
Am using this sim for exactly two years and I have experienced worst moments by this sim.Its Speed of internet is the main reason for its drawbacks.This sim or network is a public asset so it is owned , controlled and managed by the Government of India.
BHARATH SANCHAR NIGAM LIMITED is only reached the digital speed of 3G network connection while other operators like idea, vodafone, airtel etc.have already reached 4G and are looking forward for 5G.
By the emergence of JIO Digital life, BSNL was completely at a bad condition.Customers made their choice by porting to JIO sim from BSNL sim.
NETWORK: -
As I said above BSNL is now the worst network connection along with Docomo.The signals are very low in certain places.The speed of internet varries from 30kb/seconds to 50kb/seconds.3G speed is not what we want.So porting has become common.
CUSTOMER SERVICE: -
Customer service is also a disadvantage.It is because this sim is a public asset so services are very low.its like we do it if we want.other sims are having a good customer service.
CHARGES AND BILLINGS: -
Although BSNL have a poor network their charges and billings are quite normal and cheap.But their offers are low.
I woud suggest to port from BSNL network to other networks.
Thats all thank you.