The Himachal Road Transport Corporation (HRTC) will operate 266 special buses from Delhi, Chandigarh and Baddi to various destinations in Himachal Pradesh on Nov 6 and 7 to facilitate the return of people home for Diwali, deputy chief minister Mukesh Agnihotri said on Thursday. HRTC special buses will add 266 Diwali services from Chandigarh, Delhi and Baddi to Himachal Pradesh on November 6 and 7.