Tumkur is a city in the state of Karnataka, India. It is the administrative headquarters of the Tumkur district and is known for its industrial and agricultural significance.

Tumkur is located in the southern part of Karnataka, about 70 kilometers northwest of Bengaluru, the capital city of the state. It is a major industrial hub, with a number of large-scale industries, including textiles, steel, and engineering. The city is also an important center of agriculture, with a variety of crops grown in the surrounding region, including rice, sugarcane, and groundnuts.

In addition to its industrial and agricultural importance, Tumkur is also known for its cultural and historical significance. It is home to several temples and monuments, including the Gavi Gangadhareshwara Temple and the Dariya Daulat Bagh. The city is also known for its handicrafts and textiles, with a number of traditional markets and shops.