New Delhi: The National Investigation Agency (NIA) on Saturday arrested the Bihar state president of the banned Popular Front of India (PFI) in the 2022 Phulwarisharif criminal conspiracy case, the probe agency said. According to NIA, Mahboob Alam alias Mahboob Alam Nadvi, a resident of the Hasanganj area of district Katihar, Bihar, was nabbed from.