Saidapet, also known as Saidai, is a neighbourhood in Chennai, India, situated in the northern banks of the Adyar River and serves as an entry point to Central Chennai. It is surrounded by West Mambalam in the North, C.I.T Nagar in the North-East, Nandanam in the East, Guindy in the South, Jafferkhanpet and Ashok Nagar in the North-West. The Saidapet Court, the only other court of judicature in Chennai city apart from the Madras High Court, and the Saidapet bus depot are located here. Prior to its incorporation in Madras city, Saidapet functioned as the administrative headquarters of Chingleput district. The neighbourhood is served by Saidapet railway station of the Chennai Suburban Railway Network.

The Metropolitan Transport Corporation (Chennai) Ltd. - (MTC), is the agency that operates the public bus service in Chennai, India. It is a subsidiary of Tamil Nadu State Transport Corporation Ltd. As of December 2022 the MTC had a total fleet of 3,436 buses with 3,233 scheduled services, with on average 2.946 million passengers per day. On March 22, 2016, the Union Ministry of Road Transport and Highways reported that Chennai had the most crowded buses in the country with 1300 passengers per bus in each direction per day. During peak hours, on some routes, a bus with a capacity to accommodate 80 persons carries twice the number of people due to the extensiveness of the system. It has an operating area of 3,929 square kilometres (1,517 sq mi). MTC has a total of 604 routes with its largest terminus being Broadway in Central Chennai.