NEW DELHI — Wearing orange dresses with matching turbans, a group of folk musicians play tunes on their pungi, also known as been, a traditional flute made from gourd fruit. The audience at Surajkund Craft Fair on the outskirts of the Indian capital is enthralled. Many break into dance. But the musicians themselves don’t look very enthusiastic. “This is not what we want to do; it’s been thrust upon us,” says Badri Nath, 75, who heads the troupe. “But since our original work has been banned, this is all we can do. Whether we are happy or not doesn’t matter.” […]