About BSNL TTA: Bharat Sanchar Nigam Limited (BSNL) is an Indian
state-owned telecommunications company headquartered in New Delhi,
India. It is the largest provider of fixed telephony and fourth largest
mobile telephony provider in India, and is also a provider of broadband
services. However, in recent years the company's revenue and market
share plunged into heavy losses due to intense competition in Indian
telecommunications sector.