Karnataka Deputy Chief Minister Shivakumar on Sunday warned officials of "merciless action" if the potholes in Bengaluru city were not filled within the 15 days deadline that was set.

Shivakumar, who is also the Minister in-charge of Bengaluru city development had on September 1 set a 15-day deadline to the city civic body Bruhat Bengaluru Mahanagara Palike (BBMP) to fill potholes across the city, citing a lot of complaints.