From 14.09.2020 to 20.09.2020 = HWH - NDLS & 15.09.2020 to 21.09.2020 = NDLS - HWH. They are testing the Push - Pull Technology. And after that checking there all observations, test results. They will think for continue this or scrap the idea.
But, we are hoping that results are in positive sides and we will see Push - Pull continue. Hope for best.