A 32-year-old Dalit man was allegedly stripped and assaulted by a group of 13 youth in Karnataka's Vijayapura for reportedly touching a motorbike of an upper caste owner, police said on Monday.

"On a complaint by the Dalit victim (Kashinath Talwar), we have booked the 13 accused and investigating the incident, which occurred at Minajgi village near Talikoti on July 18," Vijayapura district Superintendent of Police Anupam Agarwal told reporters here.