The third largest city of the state, Coimbatore, the headquarters of a district   of the same name, is one of the most industrialised cities in Tamil Nadu. Known   as the textile capital of South India or the Manchester of the South, the city   is situated on the banks of the river Noyyal. Coimbatore existed even prior to   the 2nd century AD as a small tribal village capital called Kongunad until it   was brought under Chola control in the 2nd or 3rd century AD by Karikalan, the   first of the early Cholas. Among its other great rulers were the Rashtrakutas,   Chalukyas, Pandyas, Hoysalas and the Vijayanagara kings. When Kongunad fell to   the British along with the rest of the state, its name was changed to Coimbatore   and it is by this name that it is known today, except in Tamil, in which it is   called Kovai.
Located   in the shadow of the Western ghats, Coimbatore enjoys a very pleasant climate   the year round, aided by the fresh breeze that flows in through the 25 kms long   Palakkad gap. The rich black soil of the region has contributed to Coimbatore's   flourishing agriculture industry and, it is in fact that the successful growth   of cotton that served as a foundation for the establishment of its famous   textile industry. The first textile mills came up as far back as 1888 but there   are now over a hundred mills. The result has been a strong economy and a   reputation as one of the greatest industrial cities in South India. 
Coimbatore serves as an entry and exit point to neighbouring Kerala and   the ever popular hill station of Udagamandalam(Ooty). It is the disembarking   point for those who want to take the Mountain train that runs from Mettupalayam,   just 35 kms from Coimbatore. There are also regular bus services from Coimbatore   to Ooty.
Places to see : Perur Temple, this Temple is 7 kms from Coimbatore Railway Station   and was constructed by Karikal Cholan over 1500 years ago. There are shrines to   the presiding deity Patteeswarar and his consort Pachainayaki and some elegantly   carved sculptures in the Kanagasabai hall. Devotees flock to this temple in   hundreds during the Panguni Uthiram festival which is celebrated in March every   year.
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Excursions in   Coimbatore : Anamalai Wildlife Sanctuary, this Sanctuary is situated at   an altitude of 1,400 metres in the Western Ghats near Pollachi (about 90 kms.   from Coimbatore). The area of the sanctuary is 958 sq. kms. It has various kinds   of fauna like elephant, gaur, tiger, panther, sloth bear, deer, wild bear, wild   dog, porcupine, flying squirrel, jackal, pangolin, civet cat and birds like   rocket-tailed drongo, re-whiskered bulbul, black headed oriole, tree pie,   spotted dove, green pigeon, etc.
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Places to Visit in Tamil Nadu