Watt's first work on the catalogue of the exhibits at the Calcutta International Exhibition was published in 1883 and consisted of four volumes with seven parts in them. The exhibits themselves had been organized by Trailokhya Nath Mukharji, a civil servant who later served as a curator of the economic section at the Indian Museum. He was assisted by botanists as well as Indian physicians with a knowledge of medicinal plants including Dr Moodeen Sheriff of Madras, Kanny Lall Dey of Calcutta and Dr Udoy Chand Dutt of Serampore.