India, Oct. 12 -- The National Investigation Agency (NIA) has arrested a suspect from West Bengal in connection with a terror conspiracy orchestrated by an offshoot of the proscribed terrorist organisation Jama'at-ul Mujahideen Bangladesh (JMB), the agency said on Sunday.

The agency said it has recovered various digital devices, including mobile phones and memory cards, from the possession of the accused (not named by the agency) during the arrest.

Earlier, on September 29, 13 persons were arrested in the case during raids across Assam, West Bengal and Kerala in connection with the same conspiracy.

A charge sheet has already been filed in the matter on June 25 against 11 persons.

NIA investigation has revealed the involvement of the a...