Though origin of hand knotted carpets dates back to more than 2000 years, in India, the art was introduced in 15th century. Hand knotted rugs are often called oriental rugs owing to the region of origin. Since the craft established and flourished more in Kashmir, in India, they are often referred as Kashmiri carpets or Persian carpets. It is perceived that carpet knotting developed as a nomadic craft and spread with nomads.
As a nomadic craft, carpets were made of sheep. As the craft developed and its intricacy was realized, it was further refined. Cotton was used as base of warp and weft and even the pile at times. These blends allowed the creation of finer designs. Finest wool comes from Newzealand and India. Wool from Khoosan and Kooman is famous for being fine and velvety, while wool from the Caucasus and Central Asia is prized for being strong and lustrous. Introduction of silk yarn for piles was the cause of major shift in terms of intricacy, color, luster and the richness ofcarpet. The richness of the silk yarn made the carpets look attractive. Furthermore the fiber was strong yet appeared delicate and attractive. Usually for wool as well as silk carpets, the warp and weft of cotton are used though in pure silk carpets they may be of silk itself.