BJP and TDP are jointly campaigning for the Warangal bi-poll. BJP national leader Muralidhar Rao and Telangana TDLP leader Errabelli Dayakar Rao have taken part in election campaign today. Muralidhar Rao alleged that TRS Government is trying to ridicule democracy while Errabelli Dayakar Roo questioned CM KCR and his Ministers to clarify the reason to vote for the TRS party which did not fulfill electoral promises. . . . . .