"During that raid, 397 cartons of IMFL was seized. So there are indications that the liquor belongs to the candidate (Uttam Nagar constituency) Balyan. That is why, he has been summoned today," Delhi Police Commissioner B S Bassi said.
Balyan has not yet been named in the FIR that was filed after the raid.
However, a poll official said, "Subsequently if any name comes up in the investigation, it can be added."
Balyan sought time till February 7 but police has asked him to join the investigation by tomorrow.
AAP maintained that its Balyan had got nothing to do with the recovered liquor and said these are all old tactics of the opposition to defame the party.
On January 31, Delhi Police had registered a case under Excise Act on recovering around 8,500 bottles with the label "for sale in Haryana only".