BSNL is one of the most popular and widest mobile and landline network operator in India ... is the BSNL mobile number check code) from your phone carrying the BSNL SIM card.

Citing the example of Mahanagar Telephone Nigam Limited (MTNL), the ... to a deterioration in service quality. As a result, BSNL’s landline connections have nearly disappeared, with Jio now ...