The Javadhu Hills (also Jawadhi, Jawadhu Hills) ( Rainfall clouds producing Hills For North Tamilnadu) ( Ooty of Vellore and Tirupattur ) are an extension of the Eastern Ghats spread across parts of Tirupattur (earlier part of Vellore District) and Tiruvannamalai districts in the northern part of the state of Tamil Nadu in southeastern India. This range separates Tirupattur and Tiruvannamalai districts. Tirupattur district lies on the north-western side and Tiruvannamalai district lies on the south-eastern side of this range. The towns of Tirupattur, Vaniyambadi and Ambur of Tirupattur district are located on the north western side and the towns of Chengam and Polur of Tiruvannamalai district are located on the south eastern side. The hills consist of bluish-gray 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. "The Barahmahal hills to the west are somewhat bare, but the Jawadhi are clothed in verdure to the very summit on the east: towards sunset the whole range puts on a purple tinge like heather bloom. The sharper shadows mark out minor ranges and valleys, which in the midday merge in the mass of the range, and beyond Bommaikuppam, looking from Tirupatur, a silvery cascade may be seen, shining bright in the setting sun.". 8 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. The Indian astronomer Vainu Bappu selected the hills as the site of the Kavalur Observatory (VBO), which began operations in 1967. There are few tourist places near Javadhu Hills; Beemanmadavu waterfalls is one of the most frequented one. Jamanamarathur is one of the larger villages in these hills, populated with around 10,000. With an altitude of 857m, it is the second village in height in Javadhi hills in Tiruvannamali district. One can reach Jamanamarathur, from west – Tirupattur or Vaniyambadi , from east – Polur and from South Chengum. Highest peak : 1,400 m. Way : ● Vellore ● Polur ● Alangayam ● Tirupattur. Nearest City Corporation : ● Vellore. Nearest airport : Vellore Airport Cultivation in the Javadi Hills The hills are sparsely populated; the majority of the inhabitants are Malayali tribes people, though