SNL is one of the most prominent companies of India, and it is also one of the constituents of Nifty.
This is now Tata Communications, a global Indian-telecommunications company. VSNL is a provider of international wholesale voice services, a wholesale voice-over Internet protocol provider and a wholesale and retail data and bandwidth provider. VSNL was India's incumbent overseas telecommunications infrastructure and services provider until 2002. While domestic calls within the Mumbai and Delhi Metropolitan areas were carried by Mahanagar Telephone Nigam Limited (MTNL), all domestic long-distance telecommunication services and infrastructure were provided by Bharat Sanchar Nigam Limited (BSNL). After the opening up of the telecommunication sector, VSNL was the sole provider for overseas telecommunication service and infrastructure to private telecommunication operators.
Since 2002, VSNL has also deployed its odfwn National Long Distance Network providing telecommunication infrastructure & services within India and has become a major player in the Domestic market.
As of 13 Feb 2009, VSNL has been rebranded as Tata Communications.
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