Bihar CM Nitish Kumar won the floor test in the Assembly on Monday, even as one-time ally Rashtriya Janata Dal (RJD)-- led by Tejashwi Yadav-- walked out of the House. The trust vote happened two weeks after Nitish jumped allegiance from the Mahagathbandhan (Grand Alliance)-a JD(U), RJD, and Congress alliance — to the NDA bloc.