In 1987, Zaman set up the State of Bengal group in London after a visit to Noakhali, Bangladesh, where he interacted with traditional folk musicians and dancers.
After the release of Visual Audio[REF] in 2001,[REF] State of Bengal worked on two projects with musicians from Bengal, collaborating with Indian sitar innovator Ananda Shankar on the 2000 album Walking On[REF][REF] and with Baul singer Paban Das Baul on the 2004 album Tana Tani (Push and Pull) [REF].