On 3 August 2009, a legal case was registered against Singh and his wife by the Anti-Corruption Bureau of Himachal Pradesh. The allegations were that they had breached the Prevention of Corruption Act in 1989, when Singh was Chief Minister of the state. The Bureau alleged that it had evidence in recorded conversations between the couple and various others concerning suspect financial transactions. The alleged recordings, which involved a now-dead officer of the Indian Administrative Service and several industrialists, dated from 2007 and were provided by a political opponent, Vijai Singh Mankotia.