Tiruchirappalli Fort is a dilapidated fort which once protected the Old City of Trichy encompassing Big Bazaar Street, Singarathope, Bishop Heber School, Teppakulam and Tiruchirapalli Rock Fort. All that which remainsnow is a railway station with that name and Main Guard Gate along West Boulevard Road in the city of Tiruchirappalli in Tamil Nadu, India. The fort can be traced along West Boulevard Road in West, East Boulevard Road in East, Butter-worth Road in North and Gandhi Market to the South.
Tiruchirapalli Fort Railway Station lies opposite the Main Guard Gate and Tiruchirapalli Town Station lies towards its Eastern Entrance.
Strategically sited on the bank of the River Cauvery (Kaveri) in Southern India, about 56 miles (90 km) from the sea, Trichinopoly was the third most important fortified post in the Madras Presidency (after Fort St. George and Fort St. David). The rectangular fort was built to enclose the Rock, one of several natural outcrops of volcanic gneiss which rise abruptly from the plain.
The main guard gate was one of the main entrances for the fort complex. It is located on the major fort wall enclosing the periphery of the rock fort with its temples, lake, the palace and bazaars. The main entrance faces the north.