The injured was admitted to a hospital in sector 21 here and his condition is stated to be out of danger, they said, adding the accused had fled from the spot.
According to a police spokesman, Jogindra, a resident of Pakhal village, works at the toll plaza. This morning, he had reported to duty as usual.
In the afternoon, a car arrived at the toll plaza and on being asked to pay toll tax, the passengers refused and got into a scuffle with Jogindra and his colleagues.
On being alerted, police arrived at the spot and launched a probe.
According to Satyanarayan, ASI, Dhauj police station, a hunt is on to nab the accused.