The Council For The Indian School Certificate Examinations (CISCE) has released the Class 10 and Class 12 compartment and improvement exam dates sheets. The ICSE will begin on 16 August 2021 and end on 2 September 2021.
| Date | Day | Subject |
| 16 August | Monday | English Language - Paper 1 |
| 17 August | Tuesday | Literature in English - Paper 2 |
| 18 August | Wednesday | Physics - Science Paper 1 |
| 19 August | Friday | History & Civics - H.C.G. Paper 1 |
| 21 August | Saturday | Second Language |
| 23 August | Monday | Mathematics |
| 25 August | Wednesday | Chemistry - Science Paper 2 |
| 26 August | Thursday | Geography - H.C.G. Paper 2 |
| 27 August | Friday | Biology - Science Paper 3 |
| 28 August | Saturday | Commercial Studies (Group II Elective) |
| 31 August | Tuesday | Group III - Elective |
| 01 September | Wednesday | Environmental Science (Group II Elective) |
| 02 September | Monday | Economics |
The result of the Compartment & Improvement Examinations will be declared around September 20, 2021.
Those candidates who are successful at the Compartment Examination and whose overall results will change from PCNA (Pass Certificate Not Awarded) to PCA (Pass Certificate Awarded), must return the previous Statement of Marks in original to the Council through their school. On receipt of the same. The revised Statement of Marks and Pass certificate will be sent to the candidates' school.