Health is a "State of complete physical, mental, and social well-being and not merely the absence of disease or infirmity."It is the most important aspect of our existence which can’t be ignored. We all know various types of diseases are there in the Environment due to which people are suffering. It is necessary to spread awareness among people and to give knowledge about health.World Health Day is celebrated annually on 7th April and each year draws attention to a specific health topic of concern to people all over the world. The theme for 2021 is "Building a fairer, healthier world". SIS has celebrated this day virtually with all the students with activity-How to wash hands and basic hygiene etiquette. All the students participated very enthusiastically in Red/Green dress.