A violent tropical storm killed at least 84 people and devastated more than 67,000 homes as it swept across eastern India and Bangladesh overnight, officials said Wednesday.Winds of up to 120 kilometres (75 miles) an hour tore across northeastern India and neighbouring Bangladesh around midnight, ravaging mud and tin-roofed homes, uprooting trees and bringing down electricity lines.Officials in the states of West Bengal, Bihar and Assam said a total of 82 people had been killed. Two others were reported dead in Bangladesh, including a police officer.