Kongu Nadu, also known as Kongu Mandalam, is the geographical region comprising the western and north-western part of the Indian state of Tamil Nadu. The region covers an area of roughly 60,895 km2 an
Coins from the period of Rajendra I, showing the bow and arrow emblem of the Cheras and the tiger signage of the Cholas
Tondaimandalam region (red color) comprising Nellore, Chittoor, Tirupati, Annamayya, Vellore, Ranipet, Tirupattur, Tiruvannamalai, Villupuram, Tiruvallur, Chengalpattu, and Chennai districts of modern-day Andhra Pradesh and Tamil Nadu.