Superintendent of Police Akhilesh Kumar Jha said Ezzul Ansari, one of the injured in the blast who had fled to his in-law's house at Marhetta for treatment and was caught by the police on April 26 following a tip-off, was produced before Chief Judicial Magistrate Garima Mishra, who sent him to judicial custody.
The sleuths of National Investigation Agency interrogated him after Ansari had been shifted to the Sadar hospital, the police said.
However, Ansari's figure of 12 persons allegedly involvement in the bomb-making did not match with another injured and accused Inthsar's statement to the police where he had said seven persons were involved in the incident with six being killed and he escaped with injuries.
Inthsar is undergoing treatment at a hospital in Ranchi.
The police had moved court and exhumed the bodies of five persons, got their autopsy done before burying them. Another body was found in a tank of an abandoned house on April 20.