An unidentified boy, aged around 16 years, was found dead inside a coach of the Rourkela-Puri passanger train at the Jharsuguda railway junction on Tuesday evening.
The body was hanging in the coach reserved for disable, informed an official of the Government Railway Police in Jharsugda.
The train was detained for nearly two hours.
The boy allegedly committed suicide when the coach was stationary at the station. He hanged himself by a rope tied with a partition panel, the police official said.