Economy of Tamil Nadu projects under operation in the public-private partnership (PPP) model. It is currently working on upgrading its road network, though the pace of work is considered slow. Tamil Nadu has a well-developed rail network as part of Southern Railway. Headquartered at Chennai, the present Southern Railway network extends over a large area of India's Southern Peninsula, covering the states of Tamil Nadu, Kerala, Puducherry, minor portions of Karnataka and Andhra Pradesh. Tamil Nadu has a total railway track length of 6,693 km and there are 690 railway stations in the state. The system connects it with most major cities in India.
1977 Indian general election in Tamil Nadu by supporting Charan Singh, which resulted in the appointment of two ADK cabinet members. While there were no members from Tamil Nadu in Morarji Desai's Administration, Charan Singh appointed two AIADMK members to his cabinet, making it the first time a non-Congress Dravidian Party member making it to the council of ministers at the national level. 1977 Indian general election in Tamil Nadu The Indian general election, 1977 polls in Tamil Nadu were held for 39 seats in the state. The result was a big victory for Indian National Congress under Indira Gandhi and its allies Anna Dravida Munnetra Kazhagam