Why are get Chennai name

The name Madras is derived from Madraspatnam, the site chosen by the British East India Company for a permanent settlement in 1639.

Currently, the nomenclature of the area is in a state of controversy. The region was often called by different names as madrapupatnam, madras kuppam, madraspatnam, and madirazpatnam as adopted by locals. Another small town, Chennapatnam, lay to the south of it. This place was supposedely named so by Damarla Venkatadri Nayakudu, Nayak of Wandiwash in remembrance of his father Damarla Chennappa Nayakudu. He was the local governor for the last Raja of Chandragiri, Sri Ranga Raya VI of Vijayanagar Empire. The first Grant of Damarla Venkatadri Nayakudu makes mention of the village of Madraspatnam as incorporated into East India lands but not of Chennapatnam. This together with the written records makes it clear that the Fort which became the center of present Chennai, was built upon or nearby the village of Madraspatnam. Although, Madraspatnam is named in later records following the establishment of Fort St. George, this is likely because of the discriminatory nature of the local caste system. Under Hindu caste code, as well as English Common Law, it is unlikely that Fort St. George was built upon the village of Madraspatnam and its inhabitants incorporated into the new town. Instead, it is likely that Fort was built either close to the village or if it was built upon the village, the village was relocated. In fact, in all records of the times, a difference is made between the original village of Madraspatnam and the new town growing around the Fort known as "White Town". Therefore, because of the fort's proximity or origin to the village of Mandraspatnam, and the fort's centrality to the development of the city, the British settlers of the city later named their settlement Madras in honor of it. Further militating against the name "Chennai", Chennapatnam was the name in later years of an area explicitly detailed as having been incorporated of native villages, European plantations, and European merchant houses outside of the combined city of Madras consisting of Fort St. George, and White and Black Town. Lastly, while the Fort St. George, White Town, and Black Town areas were fully incorporated together by the late 18th century, and was known as Madras, Chennapatnam was its own separate entity existing under the authority of Fort St. George well into the 19th century. Consequently, once the area separating Chennapatnam and Old Madras was built over uniting the two settlements, as founders, settlers, and authorities of area, the English named the new united city Madras. Thus it is improbable that the area was ever called Chennai. Instead, being the gateway of trade and the center of the economy of the region, the English settlement and their fort of 1639-40, which was the basis for the presently named city of Chennai, was likely called Madras as well by the rest of India. The DMK renamed Madras to Chennai as DMK founder Leader Anna renamed Madras State as Tamil Nadu.