In what was seen as a body blow to the Opposition unity in Bihar, Nitish Kumar resigned as Bihar Chief Minister on July 26, 2017 . He cited "irreconcilable differences" with ally RJD on the issue of corruption charges against his then-deputy Tejashwi Yadav. The BJP swiftly moved in, praising Mr. Kumar’s action, and giving its letter of support to a government headed by him.
On July 27, 2017, Mr. Kumar took the oath as the Chief Minister of Bihar , this time, however, with the support of the BJP.
A look at the political career of Nitish Kumar through the years
1985: Nitish Kumar elected to the State Assembly
1989: Backs Lalu Prasad in bagging the chair of the Leader of Opposition
1996: Switches loyalty to BJP
From 1998 to 2004: He served in the NDA government under A.B. Vajpayee in various capacities as the Railway,Surface Transport and Agriculture Minister
November 2005: Became Bihar Chief Minister with the BJP as the coalition partner
June 2013: Broke alliance with the BJP when it was clear that Narendra Modi was the BJP's prime ministerial candidate
February 2015: Allies with Lalu Prasad and contests the Assembly election, forming grand alliance with the Congress
July 2016, 2017: Takes another U-turn, decides to ally with the BJP to form the government in the State. Takes oath as Chief Minister for the sixth time, this time with the BJP's help
