The driver lost control over his tractor carrying 20 tonnes of sugarcane as the road was under repair, resulting in the mishap, police said.
The deceased included six women, police said.
The injured have been shifted to the Jamakhandi government hospital.
District in-charge Minister S R Patil, who visited the spot announced a compensation of Rs one lakh to the next of kin of the victims from the Chief Minister's relief fund.
