Rajasthan is a state in northwestern India. It is mainly arid and its western border is adjacent to Pakistan. The main attraction for travelers is the vast Desert of Thar and one of the oldest mountain ranges in the world, the Aravalis. The Rajput heritage which is apparent in the forts, temples and palaces established by the Rajput Kings like Bappa Rawal, Rana Kumbha, Rana Sanga and Rana Pratap, is also a draw to the region. Rajasthan is one of the larger Indian states and distances are long, making planes a fairly good option for getting in. Jaipur, Jodhpur and Udaipur all have airports with direct links to many major cities, though if coming from a smaller city, one has to go via Delhi. Overnight trains from Delhi and Mumbai reach most of Rajasthan's major cities. For points further out, like Jaisalmer, you'll be looking at a second day on the train as well. The Shatabdi and Rajdhani express are excellent trains and have excellent service. Another option is Palace on Wheels which is a week long luxury train ride through Rajasthan. The National Highway 8 which runs through Rajasthan is excellent and connects Delhi to Mumbai. Though Mumbai may be too far away, this is the most popular way to travel to Jaipur from Delhi as the road is in excellent condition and the drive can easily be completed in under 4hrs.