As many as 30 people had a narrow escape on Sunday when a Delhi Transport Corporation bus they were travelling in caught fire due to sparking in its wires, said a Fire department official. ‘The incident was reported around 10 am The bus was heading towards Ashram when it caught fire near Sarai Kale Khan in south Delhi,’ said a Fire department official. Noticing the fire, the driver stopped the vehicle and asked the passengers to get off. Two fire tenders put out the blaze, said the official.