Information about the origins of Coimbatore is scarce. During the early period it was ruled by the Chera and Chola dynasties. During the early Chola period (prior to the year 200 CE) Karikala Chola built the Perur temple. Later, the region passed to the Rastrakutas and Ganga kingdoms of Mysore following the political confusion created by the Kalabhras, who held sway over South India until 550 CE. The Chalukya dynasty took over the region in 550 CE, after a brief tussle with the Pallavas, who ruled the region for a few decades. From the Chalukyas, it passed on to the Pandyas of Madurai in 720 CE.

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The city lies between 10.8 degrees and 11.13 degrees of the northern latitude and 76.87 and 77.11 of eastern longitude in the extreme west of Tamil Nadu near Kerala state at an elevation of 432 metres from sea level. Mean valued to 11.00 N 77.00 E. It is surrounded by mountains on the west, and with reserve forests and river basin (Nilgiri Biosphere Reserve) on the northern side, while the eastern side of the district starting from the city is predominantly dry.

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The city's primary industry is engineering and textile industry. The district also houses the country's largest cluster of hosiery and poultry industries. Most of the industries are run by entrepreneurs, often indigenous with family based or community financing. The city's industrial growth started in 1920?s and accelerated after Independence, without any government assistance or without the entry of external industrial houses. Of late, IT companies have started opening their offshore development centres in the city.

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