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.
Emblem of Tamil Nadu which is supposed to have been incorporated into the state emblem were futile. Emblem of Tamil Nadu The Emblem of Tamil Nadu is the official state emblem of Tamil Nadu and is used as the official state symbol of the Government of Tamil Nadu. It consists of the Lion Capital of Ashoka without the bell lotus foundation and flanked on either side by an Indian flag. Behind the capital, is the image of a "gopuram" or temple tower based on the Tower of sri andal temple located at srivilliputtur, Virudhunagar district. The state emblem was designed in 1949 by artist