 In due time, Siddiqui transformed the institute into a distinguished centre of international excellence in the field of chemistry and natural products.In March 1975, he headed the National Commission for Indigenous Medicines His tireless efforts for the promotion of science and technology earned him "Hilal-e-Imtiaz" by the Government of Pakistan in 1980.In 1983, he played a major role in the establishment of the Third World Academy of Sciences and became its Founding Fellow.