Hosur also recognized as "Little England" for various developments in the Hosur city and on checking out the history for 2000 years the area occupied by 1000 various industries. The Hosur city is approximately situated at 900 meters above sea level and the minimum temperature during the summer is 25 o C to 30 o C and in the case of winter it is 13 o C to 25 o C. The people living in this region are identified as local and settled. 'Local' signifies people who live in Hosur even before industrialization and 'Settled' signifies people who got settled in Hosur after 1970s. 70% of the Locals speak Telugu as their mother tongue, while 99% of the Settled speak Tamil as their mother tongue, apart from these the additional language widely spoken is Kannada.
Hosur comes under the region of Krishnagiri District whereas 'Krishnam' in north Indian language represents black and 'Giri' in north Indian language represents hill (Granite hills). In fact Hosur and its adjoining regions are very much rich in Granite.
During the Sangam age, Hosur was called as 'MurasuNaadu'. Many Stone arts can be found on the rock which denotes that the region of Hosur was cultured even during the period of Stone Age. The region was also called as Thagadoor throughout the ancient Tamil Sangam Age and also as AthiyamaanNaadu as Hosur was under the rule of Athiyamaan, the ruler who gave 'Karu-Nellikkaai' to extend the life of Tamil poet Av-vai-yaar. All through the Tamil Sangam Age, the regions such as Hosur, Krishnagiri, Dharmapuri, Mysore, Bangalore and Salem was ruled by Tamil kings and to a great extent it was a part of Tamil Nadu.
A small temple was built namely 'Kaali-kaambaal - Kaamadeswarar' on the Hill while climbing it can be seen on the hill top at Hosur by a land lord named BattaKur-rappaNayaka who settled at Bagalur. From the earlier period till now the festival happens together with the north Indian festival Holy. The tower of the temple also does not look like that of Tamil Temple structural design and adds proof to the claim of being constructed by a north Indian. The temple is considered to be built during the period of 1200 AD and therefore establishment of modern Hosur can be considered from the year 1207 AD.