Shahid Yousuf, son of Hizbul Mujahideen chief Syed Salahuddin, was arrested by NIA in New Delhi, a news gathering agency reported on Tuesday.
Shahid was summoned by the probe agency to Delhi in connection with the investigation in the alleged funding case where he was arrested.
Shahid works in the horticulture department of the Jammu and Kashmir government.
His father, Salahudin heads the militant organisations amalgam, United Jihad Council (UJC). Salahudin also is the chief of militant outfit Hizbulmujahidin.