Dhosi Hill

Dhosi Hill is an extinct volcanic hill on the Haryana-Rajasthan border near Thana village in Mahendragarh district, about 8 km from Narnaul. Rising to about 740 metres in the Aravalli Range, it features a distinct crater at the summit, ruins of Dhosi Hill Fort, and temples dedicated to Sage Chyawan. Revered as the legendary birthplace of Chyawanprash, it combines geological interest, trekking routes and pilgrimage significance.

Visitors can expect a moderately steep trek of about 1.5 km to the summit via stone steps and rocky paths through the Aravalli landscape. At the top is a wide, shallow volcanic crater, ruins of an old fort wall, and the Chyawan Rishi Temple and ashram with a sacred pond. The hill offers panoramic views of surrounding villages and fields, quiet natural surroundings, and areas for sightseeing and photography around the temple complex and fort remains.

Dhosi Hill is identified as an extinct volcano, considered the only volcanic hill in Haryana and part of the Aravalli Range. It is traditionally associated with Vedic Sage Chyawan, who is said to have meditated here and for whom Chyawanprash was first prepared. The hilltop fort ruins are attributed to medieval period rulers and later local chieftains who used the elevated crater rim for defence.

The hill is a Hindu pilgrimage site centered on the Chyawan Rishi Temple and ashram at the summit. Devotees visit the temple and sacred pond, especially during fairs and religious occasions. The legend of Chyawanprash gives the site importance in Ayurvedic tradition.