Nitish kumar was born on 1 March 1951 in Bihar in a Kurmi family. On 22 February 1973, Nitish Kumar married Manju Kumari Sinha, a teacher by profession. They have a son, Nishant, who is a graduate of BIT, Mesra. Nitish’s nickname is ‘Munna’. He is a teetotaler, does not smoke, and is a frugal eater. He is also known as ‘Sushasan Babu’ by his fans and followers. He has a degree in Mechanical engineering from the Bihar College of Engineering, Patna (now NIT Patna).
He joined the Bihar State Electricity Board, but halfheartedly, and later moved into politics. Nitish Kumar participated in Jayaprakash Narayan’s movement between 1974 and 1977, and was close to Satyendra Narayan Sinha, a prominent leader of the time. He was first elected to the Bihar Legislative Assembly in 1985 as an independent candidate. In 1987, he became the President of the Yuva Lok Dal. In 1989, he became the Secretary-General of the Janata Dal in Bihar. He was also elected to the 9th Lok Sabha the same year. Nitish was aligned with Laloo Prasad Yadav for years before they parted ways and Samata Party came into existence in 1994.
He briefly served as the Union Cabinet Minister for Railways and Minister for Surface Transport and then as the Minister for Agriculture in 1998–99. In August 1999, he resigned following the Gaisal train disaster. On 3 March 2000, Nitish Kumar was appointed the Chief Minister of Bihar, but he resigned seven days later because failed to prove majority. RJD leader Lalu Prasad Yadav enjoyed the majority. n November 2005, he led the National Democratic Alliance to victory in the 2005 Bihar assembly elections bringing an end to the 15-year rule of the Lalu Prasad Yadav-led Rashtriya Janata Dal. He was sworn in as the Chief Minister of Bihar on 24 November 2005.
In 2010, Nitish Kumar’s party swept back to power along with its allies Bharatiya Janata Party. On 26 November 2010, Nitish Kumar took oath as a Chief Minister of Bihar. This is his second consecutive term as Chief Minister of Bihar. For the first time electorates witnessed high turnout of women and young voters, while this was declared as the fairest Bihari election, with no bloodshed or poll violence.
Under his governance Bihar has had a record number of criminal prosecutions through fast track courts. His government initiated a mandatory weekly meeting with all District Magistrates to monitor progress at the grassroot level. His government has generated employment in police services and teaching. Bihar recorded record construction work during his five year mandate, surpassing the national average.