Under aim 1, investigators were designed a "Healthy Tiffin Box" intervention for children. We were provided a specially designed Tiffin box that will contain five different compartments of various sizes for stuffing with five different food types in order to ensure healthy balanced diet. It was recommended to parents to provide food from all food groups and make a 'Healthy Tiffin Box' with an amount adjusted to the recommended size of the designated compartment. We were suggested a seasonally available and culturally appropriate list of healthy foods and recipes for children. The use of 'Healthy Tiffin Box' was demonstrated to parents, children and school authority by study staff and the benefit of the box will be explained to understand the importance of healthy eating and physical activity practice from their early life.