Tumkur, the seat of administration of Tumkur District, is a leading commercial, industrial and business center and a famous health resort in the Devarayanadurga Hills. It is situated 70 km north-west of Bangalore on the BangalorePune highway.
Tumkur was founded by the Kante Arasu of the Mysore royal family. It is a big market for vegetable oil, tobacco, chilies and coconuts in the district. Prominent industries are that of soap, tools and food processing.