At least 3 people were killed and the same number of passengers were severely injured after a bus fell into a deep gorge in Kullu district of Himachal Pradesh on Thursday. The private bus, bearing registration number HP 66-7065, fell into the over 300-metre-deep gorge near the Dhoth Morh in Banjar tehsil of the district, Kullu Superintendent of Police Shalini Agnihotri said.