The 3^rd two days International Conference on 17 and 18^th October,2021 was organized under the joint aegis of Agriculture and Environmental Technology Development Society and the Sri Guru Ram Rai University, Dehradun. The main theme of the conference was Food Security, Environment Security and Sustainable Development based on Global Initiative in Agriculture Forestry and Applied Science. The conference, organized in the Medical College of the University, was inaugurated by Chief Guest Professor Devi Prasad Tripathi and Special Guest Minister of State Chaudhary Ajit Singh, Chairman, Silk Federation and Vice Chancellor of the University, Professor U S Rawat. The world is looking at the development in the agriculture sector with a hopeful eye. The future of this development journey depends on the visionary thinking of young agricultural scientists. This international conference was based on the burning problem of Sustainable Development and Food Security globally. India has been an agriculture major country, where there has never been a problem of supply of food grains during 1960s decades, because there have been a good number of productions but today there is not good synchronization of the demand with supply of the food grains. If the population is not controlled, then this problem can become worse. Increasing climate change in Uttarakhand, as well as the need for scientific discussion on this Ghost Village is becoming a tradition in Uttarakhand and a large number of villages are becoming deserted in the state, even on this sensitive subject. This conference was being conducted both online and offline where contestants and speakers from different countries like India, Bangladesh, Iran, Malaysia, China and Corteva Agri science had participated.