The journey from Manali to Udaipur covers about 1000 km. The most practical way is to take a bus to Delhi and then a train or flight to Udaipur. Expect a total travel time of 24 to 28 hours by train.
Total Distance: 1000 km by road, 850 km air distance.
Take the Mewar Express from Delhi for a direct train connection to Udaipur.
October to March for pleasant weather.