Sat Dharma Ashram is doing its spiritual services in Kolli hills and also in Thiruvannamalai.
Kolli hills is located at about 1200m above MSL on Kolli Hills surrounded by serene unpolluted hill atmosphere. The place is always under pleasant medium climate suited for spiritual sadhana.
Natural forest, small brooks, big waterfalls and an ancient Siva temple are some attractive features. Kolli hills is known since ancient times for its powerful miraculous herbs. It is also known as mystic place for siddhas. Many people visit this place for meditation.