Minister of Panchayati Raj & Rural Development of India
Singh served in the government of Bihar as Co-Operative Minister from 2005 to 2010 and as Animal Husbandry minister from 2010 to 2013. He has been a staunch supporter of Narendra Modi from the beginning. He publicly supported Modi for Prime Minister for a long time. He was among the eleven BJP ministers who were dismissed by Nitish Kumar as a result of breaking the JDU-BJP alliance. He was a member of the Bihar State Bharatiya Janata Party's 16-member state election committee and a State Minister (independent charge) of the "Ministry of Micro Small and Medium Enterprises ", MP from Nawada Constituency (2014 Indian General Election).
In May 2019, he became the Cabinet Minister of the newly formed Ministry of Animal Husbandry, Dairying and Fisheries after defeating CPI candidate Kanhaiya Kumar in the 2019 Indian general election.
In July 2021, he became Minister of Rural Development and Minister of Panchayati Raj in Second Modi ministry after the Cabinet reshuffle replacing Narendra Singh Tomar.