The EFCC had invited the ex-minister, who was at that time in the United States, to answer questions regarding N4.75bn arms funds traced to him.
He arrived in Lagos enroute Amsterdam and headed for Abuja to keep an earlier scheduled appointment with the EFCC on Monday.
The EFCC is investigating a firm, belonging to two sons of Obanikoro, Sylvan McNamara for receiving N4.75bn arms funds from the office of the former National Security Adviser between April 4, 2014, and December 15, 2014.
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The two sons are Babajide and Gbolahan.
The commission is claiming with documentary proof that a total of N4.745bn was paid into the Diamond Bank account of Sylvan McNamara during the period.