Sub-Divisional Judicial Magistrate Priya Ranjan Barik allowed the GRP to subject the accused Ramachandran Subas to polygraph test as the GRP claimed that the accused was not revealing the truth.
Earlier in the day, Railway Protection Force (RPF) officials from Mugalsarai, Gaya and West Bengal interrogated Ramchandran in Bhubaneswar.
He was arrested by the Railway Protection Force (RPF) from near the trains which were set on fire on November 12 in which at least five bogies of three empty stationary trains were damaged one after the other.
A high-level probe was ordered following the incident.