Cuddalore, also spelt as Kadalur (), is the city and headquarters of the Cuddalore District in the Indian state of Tamil Nadu. Situated south of Chennai, Cuddalore was an important port during the British Raj. While the early history of Cuddalore remains unclear, the city first rose to prominence during Pallavas and Medieval Cholas' reign. After the fall of Cholas, the town was ruled by various dynasties like Pandyas, Vijayanagar Empire, Madurai Nayaks, Thanjavur Nayaks, Thanjavur Marathas, Tipu Sultan, French and the British Empire. Cuddalore was the scene of the Seven Years' War and the Battle of Cuddalore in 1758 between the French and British. It has been a part of independent India since 1947. During the 2004 Indian Ocean earthquake, and the subsequent tsunamis generated, Cuddalore was one of the affected towns, with 572 casualties. Apart from fishing and port-related industries, Cuddalore houses chemical, pharmacological and energy industries in SIPCOT, an industrial estate set up by the state government. The city is administered by municipal corporation covering 101.6 km2 . It had a population of 308,781 in 2011. Cuddalore is a part of the Cuddalore legislative assembly constituency, a part of the Cuddalore Lok Sabha constituency. There are 25 schools, two arts and science colleges and two engineering colleges in the city. There is one government hospital, six municipal maternity homes, and 42 other private hospitals that take care of the citizens' healthcare needs. Roadways are the primary means of transportation, while the town also has rail connectivity. The nearest airport is Chennai International Airport, located 200 km (120 mi) away from the city, and another local airport is located in the district at Neyveli township is Neyveli Airport. The nearest seaport is Cuddalore Port where it handles small cargo ships, and the construction of port entry is underway. The closest major seaport is Karaikal port, located 100 km (62 mi) away from the town. Cuddalore is famous for educational institutions and medical establishments. Etymology Before English control, Cuddalore was called Koodalur meaning confluence in Tamil. It is the place where the Pennaiyar, Kedilam, and Uppanar Paravanar rivers join. The Cuddalore district historically consisted of Chola Nadu and Nadu Naadu. The name Nadu Naadu meaning middle country may originate from its location between Chola Nadu and Tondaimandalam; or between the Pallavas and the Cholas; or between central territories and the ocean. History From ancient times the old town has