Bandhu began to explore lampworking in 1975 while he was still in high school. As an undergraduate at Princeton University, he studied informally with the chemistry department glassblower. Dunham went on to complete his apprenticeship under American and European masters at UrbanGlass, The Pilchuck Glass School, and the Penland School of Crafts.
Bandhu uses glass rods and tubes that are shaped using a gas-oxygen flame and colored with metallic oxides to achieve the desired effect. He is known for his whimsical goblets, abstract forms, and kinetic sculpture. His work is displayed in galleries and permanent collections in museums, including the Corning Museum of Glass. He has taught at studios and glass schools across the U.S. and abroad, in Osaka, Japan.