Being an industrial-based economy, there are a number of jobs in Trichy. The city is known for industrial units dedicated to manufacturing heavy machinery and engineering equipment. Due to this, Trichy is known as the ?boiler capital of India? and is considered to be Tamil Nadu?s industrial hub. Golden Rock Locomotive Workshop, Heavy Alloy Penetrator Project (HAPP), Bharat Heavy Electricals Limited (BHEL), Dalmia Cements, and Trichy Steel Rolling Mills are few of the city?s major factories and manufacturing units.