Mr. Kumar is an alliance partner of NDA for a long time and left the alliance just when NAMO was selected as the prime ministerial candidate before the 2014 general elections.
After that he tied up with his one time confidant Lalu Prasad and formed the government in Bihar along with him. After sometime differences brewed up among them and he left the government and formed it again with his old friend NDA.
Though the BJP have the numbers on his own and in power in most of the states, it may become difficult for them to pass through to the next general elections without the help of some regional allies. It may be because of this apprehension they stopped playing the Big Brother attitude and wanted to stay as a good guy in Nitish Kumar's record book.
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