He is Advisory to many international consultation meetings organized by the UN specialized Agencies (FAO, WHO, UNICEF, UNHCR),Member, WHO Expert Advisory Panel on Nutrition. (appointed by Secretary General, World Health Organization, UN.). Members of the Panel are officially International Nutrition Experts.

Community nutrition: nutritional status assessment, food consumption, surveys, public health nutrition, Food and nutrition policy-making, planning and management, Food safety, Nutrition in PHC, Food security