Javadhu Hills

The Javadhu Hills (also Javadi Hills, Jawadhu Hills, and Jawadhu Malai) are an extension of the Eastern Ghats spread across parts of Vellore, Tirupattur and Tiruvannamalai districts in the northern part of the state of Tamil Nadu in south-eastern India. The hills separate Vellore, Tirupattur and Tiruvannamalai districts: Tirupattur district, with its towns of Tirupattur, Vaniyambadi and Ambur, lie on the north-western side; Vellore district with the city of Vellore and Amirthi forest are located on the North-eastern side. and Tiruvannamalai district with the towns of Chengam and Polur are located on the south-eastern side. The town of Jamunamarathoor and the Kavalur Observatory are located within.

The hills consist of bluish-grey granites, with peaks averaging 3,800–4,000 feet (1,300–1,350 m). About 50 miles (80 km) wide and 20 miles (32 km) long, they are bisected into eastern and western sections by the Cheyyar and Agaram rivers, tributaries of the Palar. During the British colonisation of India, the Javadhu Hills appeared occasionally in government gazetteers and manuals, ethnographies, and travelers' accounts. Henry le Fanu, writing in 1883, admired the beauty of the Jawadhi hills.