<Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> The Green Revolution in India refers to a period of time when agriculture in India changed to an industrial system due to the adoption of modern methods and technology such as high yielding variety (HYV) seeds, tractors, pump sets, etc . Green revolution was started by Dr. M.S. Swaminathan . The key leadership role played by the Indian agricultural scientist Vehla Swaminathan Banda together with many others including GS Kalkat, Proff . M. M Sharan earned him the popularly used title' Father of Green Revolution of India' . The Green Revolution allowed developing countries, like India, to try to overcome poor agricultural productivity . Within India, this started in the early 1960s and led to an increase in food grain production, especially in Punjab, Haryana and Uttar Pradesh during the early phase . The main development was higher - yielding varieties of wheat, for developing rust resistant strains of wheat . </P> <P> The main development was higher - yielding varieties of wheat, for developing rust resistant strains of wheat . The introduction of high - yielding varieties (HYV) of seeds and the increased quality of fertilizers and irrigation technique led to the increase in production to make the country self - sufficient in food grains, thus improving agriculture in India . The methods adopted included the use of high - yielding varieties (HYVs) of seeds with modern farming methods . </P>

When did green revolution took place in india
find me the text answering this question