Mr Jahan was questioned a week after the top court gave its nod to carry on investigation into the conversion of Hadiya and her marriage with him.
NIA sources said the probe team "re-examined" Mr Jahan today for clarifying certain facts from his earlier statement.
They, however, did not elaborate as the matter is sub-judice. The NIA had earlier investigated Mr Jahan and submitted its statement before the Supreme Court.
"We make it clear that the NIA investigation shall continue in accordance with law," the Supreme Court had said last week while allowing the 24-year-old woman to resume her studies at the homoeopathic college in Tamil Nadu's Salem.
She was placed under her parents' custody since her marriage was annulled by the Kerala High Court.