A two-member team of the National Investigation Agency (NIA), arrived here on Thursday for interrogating Nazir Sheikh, who was arrested on Tuesday for his alleged involvement with the Jamaat-ul Mujahidden Bangladesh, sub-divisional police officer Ajay Kumar Das said.

On Tuesday, Tripura police detained Sheikh for his alleged links with the Jamaat, director-general of police A.K. Shukla said.

Additional inspector-general (law and order) Subrata Chakraborty on Thursday said a local court on Wednesday remanded him in 12-day police custody.

The director-general of police said the man identified as Nazir Sheikh took training in making IEDs and was an expert in bomb-making.

Shukla said acting on a tip-off, the police detained the person, who hails from Murshidabad district of Bengal.

“We have detained Nazir Sheikh, 25, in West Tripura district. Based on our information, the accused was associated with Bangladesh-based terror outfit Jamaat-ul-Mujahideen and was trained in IED,” Shukla said, adding that the detainee was being interrogated about his mission, associates, hideouts and other details.

He said the terror group could be involved in an incident in Bodhgaya where three IEDs were recovered.

“During a visit of the Dalai Lama to India in January, three unexploded IEDs were recovered from Bodhgaya in Bihar. We have reason to believe that this terror group was involved in planting those IEDs at Bodhgaya. We are trying to explore all possible angles and contexts in our interrogation,” Shukla said.

Jamaat-ul-Mujahideen Bangladesh established links with a few people in India and were planning to hold terror activities in the country, he added.

In 2005, Jamaat had orchestrated a series of blasts across 63 days in Bangladesh.