To achieve specific aim 2, a healthy Tiffin box (intervention material) and healthy eating and active living intervention guideline (intervention module) were developed to deliver healthy lifestyle message encouraging healthy dietary habit and physical activity pattern in order to control childhood overweight and obesity. The guideline was consisted of detail description of healthy dietary behaviour and appropriate physical activity within school environments. There were some pictorial messages and food items in the guideline for clear understanding. We were delivered messages through one hour interactive group session consisting of child and parents pair based on guideline.