Adjacent to Bhubaneswar, the capital of Orissa is a modern zoo called Nadankanan, which houses the world famous white-tigers. It has the maximum concentration of these rare animals, which are created due to mutant gene. The original Rewa strain, the original Nandankanan strain, and their mixed breed are found here, which number around twenty. There is also a white-tiger safari here, which is the only of its kind in the world.