A tree plantation event at CT Public School, Jalandhar, involves students, teachers, and possibly community members planting saplings in and around the school campus to foster environmental awareness and contribute to a greener environment. The event typically includes an educational session on the benefits of trees, such as improved air quality and soil conservation, followed by the physical act of planting various tree species. Students learn to care for their planted saplings, take an oath to protect them, and become active participants in nurturing the local ecosystem, creating a practical, long-term learning experience.