The admissions process at Orchid International School has been designed to make certain that students are appropriately placed at appropriate grade levels while maintaining the integrity and consistency of the school program and policies.
| Grade | As on 30 June of the year of Admission |
| EY1 (Nursery) | 3 Years |
| EY2 (JKG) | 4 Years |
| EY3 (SKG) | 5 Years |
| Grade 1 | 6 Years |