Chikballapura district is a district in the state of Karnataka, India. In 2007, it was carved out of the pre-existing Kolar district by moving the talukas of Gauribidanur, Gudibanda, Bagepalli, Chikballapur, Sidlaghatta and Chintamani into the new district. Kannada is the official language, although the district has a Telugu-speaking majority. The town of Chikballapur is the district headquarters and a key transport link in the North Bangalore area. The north-south six-lane National Highway 7, as well as the East-West State Highway 58, go through the district. A rail line runs north from Bangalore to the town of Chikballapur, east past Doddaganjur to Srinivaspur and south to the town of Kolar.