According to sources, the accused member has been identified as Maulana Rahmat Ullah Qasmi and was arrested in Rupohihat.
Qasmi was the Nagaon district president of PFI.
He was arrested early in the morning at his residence in Kawaimari area.
Earlier today, raids were carried out at around 3 am past midnight at House number 26 at Friends Path in the Hatigaon area at the residence of PFI leader and North East Regional Secretary Aminul Haque.
NIA has taken the PFI leader into custody in connection with terror funding, organizing training camps, and radicalizing people join proscribed organizations.
Moreover, another PFI leader identified as Farhad Ali Ahmed was arrested from Dispur.
Notably, over 100 PFI cadres were arrested on Thursday in a joint operation conducted by the National Investigation Agency, Enforcement Directorate and state police forces across 11 states in the country's multiple locations.
Among the states where the raids were conducted include Andhra Pradesh, Assam, Delhi, Karnataka, Kerala, Madhya Pradesh, Maharashtra, Puducherry, Rajasthan, Tamil Nadu and Uttar Pradesh.