Career
He resigned from the primary membership of Rashtriya Janata Dal on 3 September 2015. He represented the constituency in 1972, 1977 and 1980 on the Congress ticket and became a minister in the erstwhile Jagannath Mishra ministry in Bihar. As he paraded in favour of Mishra before the Raj Bhavan in 1985 in support of the latter"s candidature for the post of chief minister and ouster of the then chief minister Bhagwat Jha Azad, Jha was denied re-nomination from Sheohar for "disobeying" the Congress leadership.
Jha then resigned from the Congress" primary membership and secured a Janata Party ticket when Shekhar was its president
After merger of former prime minister V P Singh"s January Morcha, Janata Party and Lok Dal of former deputy prime minister Devi Lal in Bangalore in 1988, Jha was made the state president of Janata Dal in Bihar. But his relations with Singh were not going well and he was removed from the post within three months.
A few months after his removal, Jha was made chairman of the party"s parliamentary board in Bihar following Shekhar"s intervention. He was pitted as chief ministerial candidate against Prasad and former chief minister Ramsunder Das by Shekhar in a triangular contest in 1990 but lost.
On 3 September 2015, Singh left the RJD joined the Samajwadi Party, becoming the latter"s first Modern Language Association in Bihar.
He also accused Prasad of ignoring senior leaders in a bid to promote his family members in the party. Singh"s son, Ajit Kumar Jha, would also join the SP, giving the party 2 MLAs in Bihar.