Prime Minister Narendra Modi will inaugurate the 32nd International Conference of Agricultural Economists (ICAE) here on Saturday, an event which is being held in India after 65 years, an official statement said. The theme of the six-day triennial conference, organised by the International Association of Agricultural Economists, is Transformation towards Sustainable Agri-Food Systems. The conference will witness participation of around 1,000 delegates from around 75 countries. It aims to tackle the pressing need for sustainable agriculture in the face of global challenges such as climate change, natural resource degradation, rising production costs and conflicts, the Statement said.