Among the charred vehicles are about 15 Haryana and Rajasthan Roadways buses, a police jeep and over 20 dumpers, trucks and other vehicles, police said.
The mob also set on fire a police post in Sector 6 of Dharuhera after they discovered another vehicle containing an enormous quantity of beef lying abandoned on the road.
The blockade on the Delhi-Jaipur highway was cleared with the intervention of a large number of police personnel who lobbed teargas shells to disperse the crowd.
The mob also manhandled mediapersons who had landed up to report on the situation, snatching away their mobile phones and cameras.
The driver and conductor of the mini-truck laden with beef were apprehended by police.