The Javadhu Hills (also Jawadhi, Jawadhu Hills) ( Rainfall clouds producing Hills For North Tamilnadu) ( Ooty of Tirupattur ) are an extension of the Eastern Ghats spread across parts of Vellore and Tiruvannamalai districts in the northern part of the state of Tamil Nadu in southeastern India. This range separates Vellore 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.