Four persons were killed and 12 sustained critical injuries when an Orbit bus collided with another private bus on the Nakodar-Shahkot road near Billi Chuharmi village this afternoon.The Badals-owned Orbit Aviation Pvt Ltd bus was heading towards Muktsar from Jalandhar. The driver was allegedly overtaking a truck when he rammed the bus into another coming from the opposite direction. The second bus belonged to GSK Transport and was on its way to Pathankot from Moga.Pala Singh of Dharamkot, Vinod Kumar of Jalandhar and Jasvir Kaur of Kotkapura died on the spot. The injured were rushed to the Civil Hospitals in Nakodar, Shahkot and Jalandhar. Gurbhej Singh of Raunt village in Shahkot succumbed to injuries in the evening.The driver of the GSK bus, Binder, suffered fractures and was admitted to a private hospital in the city. The Orbit bus driver fled the spot.Kulwinder Singh, owner of GSK Transport, said: “The Orbit bus driver is at fault as he was driving rashly and overtaking a truck when the mishap took place.”Jalandhar Rural SSP Harmohan Singh said: “The accident occurred as the road was slippery due to heavy rain. We are probing the matter.”A case has been registered under Section 304-A (causing death by negligence) of the IPC. No one has been named in the FIR.This is the second accident involving buses owned by the Badals after a Dabwali Transport bus crushed a father-son duo to death at Mullanpur (Ludhiana) on Thursday. ‘Cops tried to hush up matter’ Local residents accused the police of trying to hush up the matter. Congress leader Navjot Dahiya alleged: “It was shocking to see cops driving the Orbit bus to safety towards Malsian police post rather than rescuing the people. They were perhaps helping their political masters in a bid to avert a public backlash.”