Kolli Hills ('Kolli malai') is a small mountain range located in central Tamil Nadu, mostly in the district of Namakkal. The mountain ranges are about 1000 to 1300 meters in height and cover an area of approximately 280 square km. Kolli Hills is part of the Eastern Ghats, which is a mountain range than runs mostly parallel to the east coast of South India. The mountains are relatively untouched by tourism and still retain their natural beauty. In the first in a series of articles about lesser known regions of Tamil Nadu and India, we give you a guided tour of the Kolli Hills mountain range.
(Thanks to Wikipedia)

KOLLIHILLS IS AN MOUNTAIN RANGES OF EASTERNGHATS IT LOCATED IN THE NAMAKKAL DISTRICT
THE TOURIST PLACES IN KOLLIHILLS ARE ARAPILLIESWARAR TEMPLR,WATERFALL(30 FEET HEIGHT),
'V' POINT,BOATING,BOTANICALGARDEN,PRRK.