During his early years working in advertising agencies, from the year 2000 to 2007, Nasrul made 4 documentaries, 35 animated commercials, and more than one hundred high-end corporate websites. However, everything changed after he did Annapurna Circuit trek, in Nepal, Nasrul left advertising and became a full time writer and photographer.
He wrote books such as The Quintessence of Photography: Understanding Composition, for developing artistic vision, and The Essence of Close-up Photography, for developing the basics of photographic vocabulary and exploring close-up photography with an artistic touch. His other books are Illuminating Nature: Moments in Reflection, with vivid examples of nature and wildlife photography, and The Happy Children of the Third World, which touches on the meaning of life, to its core. Nasrul has authored over 50 books on various aspects of art, photography, cinematography, language, linguistics, and science.