The Mahanagar Telephone Nigam Limited (MTNL) was set up on April 1, 1986, by the Government of India (GoI). MTNL is among the foremost public sector undertakings in terms of divesture of equity by GoI which now holds a 56.25 per cent stake in the company. The corporate has been entrusted with the management, control and operations of telecom services in the metropolitan limits of Mumbai and Delhi. MTNLs success can be gauged from the fact that it is to be the first leading public sector undertaking (PSU) to be listed on the tech-heavy premier US bourse, NASDAQ. The government has disinvested approximately 245.63 million shares (including GDR 40) up to March 31, 1999. The companys scrips are listed on the countrys major stock exchanges of Mumbai, Delhi, Chennai, and Calcutta. GDR floats of the company are listed on the London Stock Exchange.