1. From Chandigarh [180 km from Mandi (6 hours)] :
You can fly to Chandigarh International Airport (IXC) or take a train to Chandigarh Railway Station and then proceed to Mandi by taxi or public transportation such as buses.
2. From Delhi[450 km from Mandi (12 Hours)] :
(i) You can fly to Indira Gandhi International Airport (Delhi) then take a bus from Delhi Kashmiri gate to Mandi. You can book it online from official website of redBus or HRTC . It's a night travel bus 'AC Volvo' and reached morning at Mandi.
(ii) You can fly to Indira Gandhi International Airport (Delhi) then you can take a train to Chandigarh Railway Station and then proceed to Mandi by taxi or public transportation.
3. Other options :
Ambala is approximately 188 km, Manali is approximately 123 km and Shimla is approximately 125 km away from Mandi. Taxis and buses are available for all of the above routes.
Local/ city transport :
(i) Once you reach Mandi town, you can use the local transportation options (such as Himachal Roadways Buses/ Cars on rent) to reach IIT Mandi's South Campus (ST4 2023 venue).
(ii) Institute Buses reachs at the South campus first then reachs to the North campus.
(iii) For Local Buses Just tell them you want to go to 'IIT Kamand South campus' and they will drop you at the main gate of the south campus.
(iv) IIT Mandi North/South campus is approximately 23 Km from Mandi bus stand. It takes 40-45 minutes to reach IIT Mandi campus from Mandi bus stand Himachal roadways, private buses & cars on rent are available to travel from Mandi bus terminal to Kamand or Salgi village. The buses normally play during day time on regular intervals. Cars on rent are available from outside Mandi bus station round the clock.
(v) The approximate cab charges for the journey from the Mandi bus stand to the IIT Mandi campus range between Rs. 800 to 1000.
You can also book a taxi (Barkat Ali Taxi - 9805375105) in case you reached late at night at Mandi bus stop.
For further details, you can look at the official website of IIT Mandi: How to Reach IIT Mandi.