"The fire was detected around 3.30 am between Lavapadu and Tettu station in the district," said Prakasham district Superintendent of Police Navin Chand. Thick smoke and fire were first noticed in one of the AC bogies from rearside and alert passengers pulled the chain to stop the train. Fire was also noticed in another AC bogie.
The railway personnel detached the two bogies of the train that runs between Secunderabad-Tirupathi and evacuated the passengers. A team of forensic experts rushed to the site to investigate the reasons behind the incident, he added.