Hitting out at the Aam Aadmi Party government, Congress on Wednesday accused Delhi Chief Minister Arvind Kejriwal of “duping” the guest teachers of government schools and said that he should regularise their services immediately. Party alleged that government has been totally ignoring the teachers who have been sitting on dharna for the past 11 days in front of the Old Secretariat. “Kejriwal had told a lie to the teachers that he had signed on the file for regularizing the services of the guest teachers during his 49-day rule, but before the order could be implemented, he resigned. “AAP has also put in its website that Kejriwal had signed on the file, but we wonder what happened to that file now,” Sharmishta Mukherjee told reporters here.