Who gave the slogan 'Jai Jawan, Jai Kisan' during the 'Indo-Pakistan War' in 1965?

'Jai Jawan Jai Kisan' was a slogan of the second Prime Minister of India Lal Bahadur Shastri in 1965 at a public gathering at Uruwa, Prayagraj. Soon after Shastri took over the prime ministership of India after Nehru's death, India was attacked by Pakistan. At the same time, there was a scarcity of food grains in the country. Shastri gave the slogan 'Jai Jawan Jai Kisan' to enthuse the soldiers to defend India and simultaneously cheering farmers to do their best to increase the production of food grains to reduce dependence on imports. It became a very popular slogan.