Union Home Minister Amit Shah's 12-year-old video from his rally in Kolkata has resurfaced after BJP ended Mamata Banerjee's 15-year reign in West Bengal. While directly challenging Mamata, Shah had said, "Didi asked media who is Amit Shah. Didi if you can see this...I'm Amit Shah." "I'm here to uproot TMC from the land of Bengal," he added.