The Indian Agricultural Research Institute (IARI), commonly known as the Pusa Institute, is India's National Institute for agricultural research, education and extension. The name Pusa Institute is derived from the fact that the institute was originally located in Pusa Bihar as the Imperial Institute of Agricultural Research in 1911. It was then renamed as the Imperial Agricultural Research Institute in 1919 and following a major earthquake in Pusa, it was relocated to Delhi in 1936. The current institute in Delhi is financed and administered by the Indian Council of Agricultural Research (ICAR). The IARI was responsible for the research leading to the "Green Revolution in India" of the 1970s.