 The city is an important educational centre in the state of Tamil Nadu, and houses nationally recognised institutions such as the Indian Institute of Management (IIMT), Indian Institute of Information Technology (IIIT) and National Institute of Technology (NITT). Industrial units such as Bharat Heavy Electricals Limited (BHEL), Golden Rock Railway Workshop and Ordnance Factory Tiruchirappalli (OFT) have their factories in Tiruchirappalli. The presence of a large number of energy equipment manufacturing units in and around the city has earned it the title of "Energy equipment and fabrication capital of India". Tiruchirappalli is internationally known for a brand of cheroot known as the Trichinopoly cigar, which was exported in large quantities to the United Kingdom during the 19th century.
