Mohd Afzal, a kin of another blast suspect Ujjair Ahmad, had come to the airport to see off his wife when he was detained by security agencies and taken for questioning, sources said on Thursday.
National Investigation Agency (NIA) sleuths had on Wednesday arrested Ujjair Ahmad in connection with the blasts case besides an associate of suspected Indian Mujahideen member, Imtiaz Ansari, who is accused of triggering Sunday's first blast at the Patna railway station.
Tipped off by the Patna Police and the NIA, the associate Arshad Ahmad was picked by the local police from Alauli village in Bihar's East Champaran district.
Mohd Afzal, is a kin of Ujjair Ahmad, another blast suspect
Two other suspects, identified as Tausim and Imtiaz Ansari, were arrested soon after the bomb blasts in the Bihar capital on Sunday.
Director General of Police Rajeev Kumar had said that six persons were detained for interrogation in connection with the serial blasts set off at and near the Gandhi Maidan ahead of the rally addressed later by BJP's prime ministerial candidate Narendra Modi. Six persons were killed and 82 others injured in the serial blasts at the Gandhi Maidan and surrounding areas.