From ISBT (Interstate bus terminus) platforms 6-8, Kashmere gate, Delhi, one can catch buses towards Manali or Mandi. You can opt for different types of buses ranging from ordinary, to deluxe to AC. For more details, please visit hrtc.gov.in (Himachal Road Transport Corporation website). Other state buses and private buses are also available. The road distance between Delhi and Mandi is ~475 km. and it usually takes approximately 12 hrs (depending on traffic and other conditions) by bus. Traveling by taxi or personal vehicle, reduces the journey time by nearly an hour.