Patna, March 6 :    Patna, March 6:  A Patna court today sentenced Laloo Prasad Yadav's biographer, Mritunjay alias Bablu Yadav, to 10 years' rigorous imprisonment and an additional jail term of six months for raping the wife of a senior IAS officer. Additional district and sessions judge H.K. Srivastava also convicted Bablu's mother, Hemlata Yadav, a senior Rashtriya Janata Dal worker, for abetting the rape. The judge said she was instrumental in victimising Champa Biswas but released her after taking into account the three years she spent as an undertrial. The court had convicted the two on February 27 but the jail terms were announced today. The verdict brought the curtains down on a high-profile case in which the names of a galaxy of Bihar's political leaders figured. The case rocked the state's politics in the late nineties and dragged the ruling RJD into a vortex of allegations, ranging from confinement of women, using them as bait for politicians and terrorising them into silence. Laloo's name also figured but the court dropped the charges against him because of lack of evidence. Hours before the judgment was delivered, Bablu was heard shouting that if he had to go to jail it was because of a section of top RJD leaders who had framed him and that they should also be dumped in jail. Champa, whose husband B.B. Biswas is now posted in Jharkhand, had accused Yadav and the others of raping her on various occasions from September 7, 1995 to November 1997. Her statement was recorded on August 19, 1998, in Delhi, where she was shifted after she refused to make a statement in Bihar out of fear. Thirty-five witnesses corroborated the charge and the DNA test ordered by the court also confirmed the rape. Bablu was arrested on August 26, 1998 while his mother surrendered before the court. Four other accused, one man and three women, are absconding. The state government had earlier paid Champa Rs 7 lakh as compensation on the orders of Patna High Court. Bablu's conviction ended his efforts to climb the rungs of power through his politically influential mother, who had used her connections with Laloo to become chairperson of the state's social welfare advisory board between 1990 and 1998. The 32-year-old postgraduate in English from Delhi's Jawaharlal Nehru University used to throw his weight around, exploiting the gullible by dropping Laloo's name. That is how he met Champa, whom he impressed with his intellectual appeal. Bablu fashioned himself as Laloo's Lytton Strachey, after the famous British biographer. 'I want to take Mr Yadav from Bihar and present him to the international readers,' he had once claimed while penning the chronology of the former chief minister's rise from a poor farmer's son to the pinnacle of power. Written in flawed English, Rags to Regime was an uncritical tribute to Laloo at a time when the RJD chief was passing through a bad phase. After the book hit the stands, Bablu declared himself an expert on Laloo and even went about lecturing on the leader at various seminars. He also got Laloo to release the book, which got favourable reviews in some newspapers.