In a scathing attack on Congress, Union Home Minister Amit Shah on Wednesday said its government in Karnataka knew about the obscene video allegations against suspended JD-S leader Prajwal Revanna for months but allowed him to flee as it wanted the voting for Lok Sabha polls in Vokkaliga-dominated areas in the state to conclude. In an exclusive interview with ANI, Amit Shah said Karanataka Chief Minister Siddaramaiah, Deputy Chief Minister DK Shivakumar and state Home Minister G Parameshwara were responsible for Revanna fleeing the country.