The Shramjivi Express train was travelling in the afternoon between Jaunpur and Delhi, when at 5.15pm, a sudden explosion tore through one of the carriages. the train's crew were able to halt the engine quickly, thus preventing the train derailing following the blast. As other passengers and locals aided those wounded by the blast, emergency services fought to extinguish the burning carriage.
Thirteen people were killed by the blast, or died later from their injuries. A further 50 people required medical treatment, including several who underwent amputations. The cause of the explosion was traced to the carriage's toilet, where a bomb using the explosive RDX had detonated. RDX is a military grade explosive which had been used in several terrorist attacks on Indian targets, including the Ayodhya train bombing in June 2000.
Eyewitnesses reported two young men who boarded the train at Jaunpur with a white suitcase. Shortly afterwards, both of them leaped from the moving train into fields and ran away without their suitcase. A few minutes later, the explosion shook the carriage.
According to officials, it is highly unlikely that this was an accidental explosion, and authorities are attributing it to Islamic extremists, who have conducted several attacks following a year of severe racial tensions in India, including major rioting in Dashehera and Ayodhya nearby.