Lok Sabha Speaker Somnath Chatterjee today rejected notices of privilege against Prime Minister Manmohan Singh on leakage of the Pathak Inquiry Authority report, but said he expects the government to investigate how this happened and take action."I hold that no breach of privilege or contempt of the House has been occasioned by the leakage of the contents of the report. I, therefore, disallow the notices of question of privilege," the Speaker ruled.The privilege notices were given by BJP deputy leader V K Malhotra and party colleagues Sontosh Gangwar and B C Khanduri, Braja Kishore Tripathy (BJD), Prabhunath Singh and George Fernandes (both JD-U), Sukhdev Singh Libra, Shiromani Akali Dal, and Mohan Singh of Samajwadi Party.