Nitish Kumar resigned as Chief Minister of Bihar on Tuesday, concluding a historic two-decade tenure that included 10 terms in office since 2005. His resignation follows his election to the Rajya Sabha on March 16, necessitated by constitutional rules preventing dual membership in state and national legislatures. Kumar's departure is significant as it opens the door for the Bharatiya Janata Party (BJP) to appoint its first-ever Chief Minister in Bihar, with Deputy Chief Minister Samrat Choudhary being the leading candidate. Kumar's political journey began in the 1970s during socialist movements, and he has been a key figure in Bihar's politics, known for initiatives like the bicycle scheme for schoolgirls. His frequent shifts in political alliances have earned him a reputation for unpredictability. The BJP-led National Democratic Alliance (NDA) is set to hold a legislative meeting to elect a new leader, with a new Chief Minister expected to take office shortly. As a Rajya Sabha MP, Kumar will likely continue to influence state governance while engaging in national issues.