"The Corporation of Chennai (previously Madras) is the Oldest Municipal Institution in India established on the 29th September 1688. A charter was issued on the 30 December 1607 by East Indian Company constituting the "Town of Fort St. George" and all the territories thereunto belonging, not exceeding the distance of ten miles from the Fort, into a Corporation."
January 1, 1970
https://en.wikiquote.org/wiki/Chennai