**2. Distribution**

In the world, sewan grasslands are mostly found in dryland areas such as African countries, arid and semi-arid regions of Asia, South America and Europe. Sewan grass is mainly grazed by ruminants, generally in association with *Cenchrus ciliaris* and *Cenchrus setigerus*, which occupy the same agro-ecological niche, especially in Rajasthan and Pakistan [12, 17, 18]. In India, sewan grass covers approximately 0.1 million hectares of the area including western Rajasthan, Uttar Pradesh, Haryana, Punjab, some parts of Delhi, and Gujarat [1]. The sewan is the most suitable and occurring species in 18–28 sub-zones of the western Rajasthan. In the western Rajasthan state of India, The main distribution zone starts from the west of Jodhpur to Barmer districts towards Bikaner. The hummocky sandy, plains of Bikaner and Barmer or adjoining districts also support the extensive sewan grasslands. Until the last decade, about 80% of the total geographical area of Jaisalmer district covering Nachana, West Puggal, Mohangarh, Sultana, and Binjewala supported sewan grasslands. The Sriganganagar, and Hanumangarh districts are suitable for Agrisilvi-pasture system with special preference to the sewan as a component.
