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The guar (Cyamopsis tetragonoloba) is one of the most important commercial crops grown in arid and semi-arid regions of India and contributes to 80% of total world production of guar. The guar processing industries in India are mainly located in Rajasthan, Haryana and Gujarat states. Out of 150 guar split manufacturing industries, about 125 are located in Jodhpur (Rajasthan). The capacity of plants varies between 3,000-5,000 tonnes per year. The seed contains 30-35% galactomannan located in the endosperm (also called guar gum split). Guar is processed using dry milling method in which the seed is split in to two halves using a burr mill. The germ is separated from cotyledons with a pin mill. The splits are heated for 10-15 min followed by dehulling using a dehuller. The hull and germ free cotyledons are known as guar gum splits. Grinding of these splits gives refined guar gum powder that has various food and industrial applications. The powder is soluble in cold as well as hot water and produces viscous gel. About 80% of the guar gum produced in India is exported to various countries. The status of guar industries in India, its export potential, properties of guar gum powder, various uses and problems associated with this industry are discussed in this paper.