Nitish Kumar resigned as Bihar CM after his JD-U walked out of alliance with BJP.
Nitish's JD-U ditched BJP to join the Mahagathbandhan with Lalu's RJD and Congress.
Let us forget what happened in 2017 and begin a new chapter," Nitish Kumar told RJD leader Tejashwi Yadav.
The JD-U had parted ways with NDA in 2015 and later won the Bihar assembly election.
But the alliance failed to work for long and Nitish brought down the Mahagathbandhan govt to join hands with BJP in 2017.
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