| Month | Circular for Class I to V | Circular for Class VI to XII |
| February 2019 | Class I to V | Class VI to XII |
| January 2019 | Class I to V | Class VI to XII |
| December 2018 | Class I to V | Class VI to XII |
| November 2018 | Class I to V | Class VI to XII |
| October 2018 | Class I to V | Class VI to XII |
| September 2018 | Class I to V | Class VI to XII |
| August 2018 | Class I to V | Class VI to XII |
| July 2018 | Class I to V | Class VI to XII |
| May & June 2018 | Class I to V | Class VI to XII |
| April 2018 | Class I to V | Class VI to XII |