BASA is an international agreement to promote international trade through air transport.
Hadi Sirika, Nigeria’s Minister of Aviation, made the disclosure via his official Twitter handle on Tuesday night.
"I am glad to announce that President has signed the instruments of ratification of the bilateral air service agreement between Nigeria and USA, India, Morocco, and Rwanda," Sirika said.
The new agreement is to enable free movement of commercial flights among the countries involved.
Airlines from all four countries operate in Nigeria, and the Nigerian Flag carrier, Air Peace, has been designated to reciprocate on both the American and Indian routes.
Nigeria has signed numerous BASAs in the past, with few reciprocated.