| Year | First Half | Second Half |
|---|---|---|
| 2015 | June | December |
| 2016 | June | December |
| 2017 | June | December |
| 2018 | June | December |
| 2019 | JuneCBGSJuneCBCS | December CBGS December CBCS |
| 2020 | December CBGS December CBCS | |
| 2021 | JuneCBCS | December CBGS December CBCS |
| 2022 | (R-2019)June | December(R-2019) C Scheme |
