BJP workers created a ruckus after police conducted searches at party candidate Raghunandan Rao's related location in Telangana's Siddipet on October 26, and seized Rs 18.67 lakh.
Siddipet Police said the BJP workers snatched over Rs 12 lakh from the seized cash and ran away.
Raghunandan Rao is contesting the by-poll from Dubbaka assembly seat.
Dubbak by-poll is scheduled on November 03.