sentences:  The Urāy/Udas group is composed of the castes of hereditary merchants and artisans.The name 'Uray' is said to have been derived from the Sanskrit term "upāsaka" meaning "devout layman".They are a prominent community in the business and cultural life of Kathmandu and have played key roles in the development of trade, industry, art, architecture, literature, and Buddhism in Nepal and the Himalayan region.