Namakkal District is one of the 38 districts (an administrative district) in the state of Tamil Nadu, India. The district was bifurcated from Salem District with Namakkal town as headquarters on 25 July 1996 and started to function independently from 1 January 1997. The district has seven taluks (subdivisions): Tiruchengode, Namakkal, Rasipuram, Paramathi Velur, Sendamangalam, Kumarapalayam, Kolli Hills and Mohanur. It has two revenue divisions: Tiruchengode and Namakkal. As of 2011 census, Namakkal district had a population of 1,726,601 with a sex-ratio of 986 females for every 1,000 males and Tiruchengode is the largest city in terms of population. Namakkal district is geographically affiliated to Kongu Nadu region. The district is famous for its large poultry industry, egg production and lorry bodybuilding industry, for which it is often referred to as "Egg City" and "Transport Hub of South India". History Valvil Ori was a chieftain and one of the seven patrons from Sangam age who ruled over Kolli Hills around 200 CE. After the struggle between the Cheras, Cholas, and Pandyas, the Hoysalas rose to power and had the control until the 14th century, followed by Vijayanagara Empire until 1565 CE. Then, the Allala Ilaya Nayakas Vettuvagounder king came to power in 1623 CE under the Vijayanagara Kingdom. He build the Paramathi Fort with sand and stones on a 40- to 50-acre land. Two of the Poligans of Tirumalai Nayak, including Ramachandra Nayaka, ruled the Salem area. The Namakkal fort is reported to have been built by Ramchandra Nayaka after about 1635 CE. Geography Namakkal district covers an area of 3,368.21 km2. The district is bounded by Salem district on the north; on the east by, Tiruchirapalli District, by Karur District on the south and on the west by Erode district. The average annual rainfall is 716.54 mm. This district receives rainfall mainly from North East Monsoon. Namakkal District comes under the North Western Agro climatic zone of Tamil Nadu.Tiruchengode taluk alone is placed under Western Agro-climatic zone. The forest cover has an area of 512.5 km2, which is 15.4% of the total area. Temperature ranges between maximum of 40 °C and minimum of 18 °C. Besides the above two zones, Kolli Hills (a part of the Eastern Ghats mountain range) and a few isolated hills and ridges are scattered over Namakkal, Rasipuram, and Tiruchengode and along with the valleys and rolling hills, make up the characteristic topography of the