Geography of India of the world's most intensely farmed areas. The main crops grown are rice and wheat, which are grown in rotation. Other important crops grown in the region include maize, sugarcane and cotton. The Indo-Gangetic plains rank among the world's most densely populated areas. The Thar Desert (also known as "the deserts") is by some calculations the world's seventh largest desert, by some others the tenth. It forms a significant portion of western India and covers an area of . The desert continues into Pakistan as the Cholistan Desert. Most of the Thar Desert is situated in Rajasthan, covering 61% of
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