Mandi (HP), May 08 (ANI): At least 12 people were killed and 43 others injured after a Himachal Road Transport Corporation (HRTC) bus fell down from a cliff in Mandi district of Himachal Pradesh in the wee hours of Sunday morning. The bus which was ferrying over 55 persons was on its way to Rekong Peo, when the mishap took place. Police officials reached on the spot to rescue the victims. The injured were thereby rushed to the nearby hospital.