Kalki movie team has thrown the 'Horn Ok Please Challenge'. Grooving to this step is fun, according to the movie team. It has invited all to take up the 'Horn Ok Please Challenge' and send their entries using #HornOkPlease. The team has announced that three most liked videos will stand a chance to attend the 'Pre Release Event' with the team 'Kalki'. Kalki is an investigative Telugu thriller in which the senior actor Rajasekhar will be seen in an uber-cool avatar. Adah Sharma, Nandita Swetha, and Scarlett Wilson play as female leads. The film is releasing on June 28th.