The Central Bureau of Investigation said on Wednesday that it has found five incriminating audio clips in the email inbox of Delhi Chief Minster Arvind Kejriwal's principal secretary Rajendra Kumar. The investigative agency has alleged that Kumar had set up companies that were given work contracts without tenders at a huge loss to the Delhi government. The CBI said on Wednesday that the clips it found contain instructions to favour private firms, ANI reported.

On December 15, the CBI raided offices in the Delhi Secretariat in connection with corruption charges against Kumar. However, Kejriwal claimed that the raid was conducted so the Centre could seize files he had that could implicate Union minister Arun Jaitley of corruption during his term as the head of the Delhi and District Cricket Association.