Theagaraya Nagar popularly known by its abbreviated form T. Nagar is a neighborhood in the city of Chennai, India. Though originally conceived as a residential locality, it is presently one of the principal shopping districts of the city. T Nagar was constructed between 1923 and 1925 by the Madras Presidency government of the Raja of Panagal as a part of town planning activities initiated according to the Madras Town Planning Act of 1920. The streets, parks and localities in the new neighborhoods were named after important officials in the provincial government.