Bhopal: A traffic policeman slapped a biker stopped for riding on the wrong side at Station Bajaria Tiraha in Gwalior, prompting the rider to slap him back before a constable allegedly beat him with a pipe.The incident, which took place two days ago, came to light on Tuesday after a video of the altercation went viral on social media.According to police, Assistant Sub-Inspector (ASI) Soneram stopped the biker during a traffic checking drive. The youth allegedly argued with the policemen and abused them, saying their salaries came from taxpayers’ money.During the exchange, Soneram slapped the biker, who slapped him back. Constable Ankit Sharma then allegedly thrashed the youth with a pipe. The video shows Sharma repeatedly hitting the biker, with the ASI also joining in.Padav police reached the spot and took the youth into custody. His motorcycle was seized and a case registered against him under relevant sections, including obstructing public servants from discharging their duties. Further investigation is underway.