Tiruchirappalli (tiruccir?ppa??i) also called Tiruchi or Trichy, is a city in the Indian state of Tamil Nadu and the administrative headquarters of Tiruchirappalli District. It is the fourth largest municipal corporation and the fourth largest urban agglomeration in the state. Located 322 kilometres (200 mi) south of Chennai and 379 kilometres (235 mi) north of Kanyakumari, Tiruchirappalli sits almost at the geographic centre of the state. The Kaveri Delta begins 16 kilometres (9.9 mi) west of the city as the Kaveri river splits into two, forming the island of Srirangam now incorporated into Tiruchirappalli City Municipal Corporation. Occupying 167.23 square kilometres (64.57 sq mi), the city was home to 916,674 people as of 2011.
Tiruchirappalli's recorded history begins in the 3rd century BC, when it was under the rule of the Cholas. The city has also been ruled by the Pandyas, Pallavas, Vijayanagar Empire, Nayak Dynasty, the Carnatic state and the British. The most prominent historical monuments in Tiruchirappalli include the Rockfort, the Ranganathaswamy temple at Srirangam and the Jambukeswarar temple at Thiruvanaikaval. The archaeologically important town of Uraiyur, capital of the Early Cholas, is now a suburb of Tiruchirappalli. The city played a critical role in the Carnatic Wars (1746–1763) between the British and the French East India companies.