Hindi is the official language of the state. But the principal language is "Rajasthani", and the four major dialects are Marwari in the west, Jaipuri in the east, Malwi in the southeast and Mewati in the northeast. But Hindi language is replacing Rajasthani. Moreover, you will find English speaking people in all the major cities, and in remote villages also you will find someone who can speak and understand English. But other languages are completely unknown. You may ask Tour Operators to help you on this and they do have guides who knows almost all the languages
