Teachers' Day is celebrated in CNL every year. On this day, teachers are given a break for their routine job of teaching. The school hall is tastefully decorated with colourful ribbons and bunting. The main function is held there.

All the teachers are invited by the students through artistic invitation cards as, honored guests and the most important person. A cultural programme especially prepared for the teachers is held. In this programme, skits, songs, dances, mimicry and parodies are presented by the students. The teachers are parodied in a light vein without giving any of them an occasion for being displeased.