The Indian pariah dog, also known as the Indian native dog or INDog, South Asian pye dog and Desi Dog, is a landrace of dog native to the Indian subcontinent. They have erect ears, a wedge-shaped head, and a curved tail. It is easily trainable and often used as a guard dog and police dog. This dog is an example of an ancient group of dogs known as pye-dogs. It is possible that the ancestry of this dog dates back 4,500 years. It is a medium-sized dog of square to slightly rectangular build and short coat. The dog has a double coat, a coarse upper coat, and a soft undercoat. The most commonly observed colours are browns, ranging from dark to reddish-brown, with or without white markings. Solid blacks are rare, but some dogs are pied. Shaded coats, brindles, solid white and dalmatian-type spotting are never seen in pure populations. These may be a sign of mixing with modern breeds, as they are only seen in dogs in cities and other sites where non-native dogs have been introduced. (Source: Wikipedia.org, CC BY-SA)