Hubballi, Jan. 7 -- Karnataka police detained 21 BJP workers, including Hubballi Mayor Jyoti Patil and Deputy Mayor Santosh Chavan, for staging a protest in front of the Keshwapur Police Station in Hubballi and demanding the arrest of a Congress corporator in connection with the alleged assault of a woman BJP worker.

The incident dates back to January 1, which have since triggered political outrage and protests.

According to Hubballi-Dharwad Commissioner of Police N Shashikumar, the initial incident occurred on January 1 during a survey conducted by local authorities in Chalukya Nagar, under the Keshwapur police station limits.

"During the survey, there was a difference of opinion among local residents, leading to a quarrel. Our police...