CHANDIGARH:Punjab Transport Minister S. Laljit Singh Bhullar, in a marathon meeting with Secretaries of all the Regional Transport Authorities (RTAs) today directed to launch intensive checking campaign to stop illegal buses plying in the state. He said that while strict action, as per the rules, should be taken against the defaulting and illegally operating buses, all the small and big bus operators should be given appropriate time in the time table and no discrimination will be tolerated while implementing the timetable.