Jodhpur, the Blue City of Rajasthan, is a long journey from Sumbal. You will need to travel to Jammu or Delhi first. From Delhi, there are several trains and flights to Jodhpur. The total distance is roughly 1200 km.
Total Distance: 1200 km by road, 950 km air distance.
The Mandore Express from Delhi is a popular choice.
October to March.