An Aam Aadmi Party (AAP) leader was critically injured on Thursday after unidentified persons allegedly fired at him, police in Amritsar said.Jaipal Singh Bau, in-charge of Ward No. 42 of the party, was shot at allegedly because of a dispute with a neighbour over car parking going back a few months, an official said.Two rounds were fired at Bau with the intent to kill him, the official said. Bai, who was admitted to a private hospital in critical condition, had to undergo an emergency surgery.He is considered close to AAP’s Amritsar South MLA Inderbir Singh Nijjar.