H A P P Y H O L I is a preparatory school in Delhi, India that is ISO 9001:2000 certified and rated as one of the best playschools in Delhi. It uses experienced teachers and interactive teaching methods like Montessori and playschool. It maintains a low child to teacher ratio of 10:1 to ensure holistic development. The school offers concept reinforcement, educational trips, celebrations, and age-appropriate teaching aids like swings, slides, and a ball pool to enhance learning. It also provides counseling to help parents choose formal schools for their children.