Shafeek Ahamed (30), a resident of Thanjavur in Tamil Nadu, was arrested and produced before a special court Tuesday here, which subsequently gave his 7 days remand to the NIA, it said.

Ahamed is an alleged conspirator in the case and had facilitated procurement of an Indian passport for V K Shajahan alias Shajahan Velluva Kandy in the name of Mohd Ismail Mohideen "on the basis of forged documents", the NIA said in a statement.

Shajahan, an alleged sympathiser of the terror group ISIS (Islamic State of Iraq and Syria), was arrested by the central agency in July last year after he was deported by Turkish authorities "in connection with his involvement in ISIS activities".

The NIA had filed a charge sheet against Shajahan and his alleged associate Mohd Mustafa last year in connection with its probe against ISIS sympathisers or operatives in the country.