The use of modern technology, extensive use of fertilisers, pesticides and High Yielding Variety (HYV) seeds which together formed the Green Revolution led to an impressive rise in foodgrains production. The agricultural productivity and average yield also increased considerably.
The other measures accompaying Green Revolution such as the development of marketing system, abolition of intermediaries and subsidised credit for farm investment provided greater portion of marketable surplus to farmers.
All these factors contributed to high crop yield which enabled the government to procure sufficient foodgrains to build the buffer stock to be used in time of shortages due to scanty rainfall, delayed mansoon, drought and other natural calamities.