American Maharajah - Mark Stephen Levy

Legend says that deep in the Rajasthan desert, a Maharajah's son died tragically only to appear years later, mysteriously reincarnated. Centuries later, Indo-American Ravi, who had been down on his luck, reluctantly travels to India to discover his parents' homeland. But his search for enlightenment is disrupted when he becomes lost in the Rajasthan desert. 
On the verge of death from dehydration, Ravi is rescued and is taken to Maharajah's palace, where the son of the Maharajah died some years before. Upon seeing him, the Maharajah proclaims that Ravi is his son, reincarnated. Enchanted by this grand new life, Ravi questions whether he could really be the son of a Maharajah.