The Central Bureau of Investigation on Monday filed a chargesheet against Delhi Chief Minister Arvind Kejriwal’s former principal secretary Rajendra Kumar in connection with a corruption case. The agency had arrested Kumar and four others in July for their involvement in the Rs 50-crore scandal involving the purchase of computers. He was released on bail later that month.

The CBI had recently sought the Centre’s permission to prosecute Kumar in the corruption case claiming that they had enough evidence against him and the other accused, reported The Indian Express. Investigators said they had audio clips containing Kumar’s instructions to influence and manipulate contracts in favour of Endeavour Systems Private Limited.

Kumar was suspended from his post by the Delhi government after his arrest. The CBI had raided Kumar’s office in December 2015 and accused him of criminal conspiracy. The Delhi chief minister and other Aam Aadmi Party members had claimed the move was part of a conspiracy to paralyse the AAP government.