Notwithstanding the entry into force of an agreement for cooperation with India arranged pursuant to section
2153 of title
42 and pursuant to this chapter, and except as provided under subparagraph (B), exports of nuclear and nuclear-related material, equipment, or technology to India shall be terminated if there is any materially significant transfer by an Indian person of—
unless the President determines that cessation of such exports would be seriously prejudicial to the achievement of United States nonproliferation objectives or otherwise jeopardize the common defense and security.