The CBI today summoned Delhi Chief Minister Arvind Kejriwal to appear before it on April 16 for questioning in the excise policy “scam”, the development coming more than a month after the agency arrested the Aam Aadmi Party (AAP) chief’s trusted lieutenant and former Deputy CM Manish Sisodia in the case.

According to a notice issued by the CBI, Kejriwal has been called to appear at the agency headquarters at 11 am to answer the queries of the investigating team as a witness in the case, officials said. AAP has termed the summons to Kejriwal as a “conspiracy to arrest him” and confirmed that he would appear before the agency.

The officials said at present, the Chief Minister had been asked to depose before the agency as a witness. But the final call on the role of Kejriwal, whether as a witness or an accused, would be decided while filing a chargesheet in the case after considering multiple factors, they said.

Sources in the CBI said there were allegations that money raised from tweaking the policy in favour of certain liquor dealers and the South lobby was used during AAP’s election campaign in Goa Assembly polls and this aspect was under investigation.