KOCHI: A KSRTC low-floor bus caught fire at Chittoor in Kochi. The accident happened this afternoon. There were 20 people on the bus at the time of the incident. A major tragedy was averted as the bus suddenly was stopped and the passengers were evacuated after seeing smoke rising from the bottom of the bus. The bus was on its way to Thodupuzha when it caught fire at Chittoor. Though the fire force reached the spot and doused the fire, the bus was completely gutted. The initial conclusion is that the fire was caused by a technical snag. A detailed examination is underway.