National Highways Authority Of India [NHAI] — charging extra toll

On KGP they are charging toll charges more than the authorised amount. As per information provided by govt toll charges for car vehicle are Rs 186 from kundli to palwal exit but they are charging around Rs 215.If someone oppose against such matter then they threat people.we were ready to pay the actual charges but they were firm on collecting the extra amount. He was gathering his other coworkers. We have not paid toll there and escaped from there so as to save ourself from fight.