Thar Desert natural vegetation of this dry area is classed as Northwestern thorn scrub forest occurring in small clumps scattered more or less openly. Density and size of patches increase from west to east following the increase in rainfall. The natural vegetation of the Thar Desert is composed of the following tree, shrub and herb species: The endemic floral species include "Calligonum polygonoides", "Prosopis cineraria", "Acacia nilotica", "Tamarix aphylla", "Cenchrus biflorus". The Thar Desert is the most widely populated desert in the world, with a population density of 83 people per km. In India, the inhabitants comprise Hindus, Muslims, and Sikhs. In
Desert National Park of the Thar Desert and its diverse wildlife adventure. The vegetation is sparse, and patches of sewan grass and aak shrub (Calotropis) can be seen. The landscape includes craggy rocks and compact salt lake bottoms, as well as intermediate areas and both fixed and shifting dunes. Around 20 percent of the vast expanse is covered with sand dunes. Flora: ronj, palm trees, ber, dhok. Mammals: desert fox, Bengal fox, desert cat, wolf, hedgehog, blackbuck and chinkara. Reptiles: spiny-tailed lizard, monitor lizard, saw-scaled viper, Russell's viper, common krait. Avifauna: sandgrouse, partridges, bee-eaters, larks and shrikes are year-round residents, while demoiselle crane