(7)Every person who is required to furnish or intimate or quote his Permanent Account Number under this Act, and who—(a)has not been allotted a Permanent Account Number but possesses the Aadhaar number, may furnish or intimate or quote his Aadhaar number in lieu of the Permanent Account Number, and such person shall be allotted a Permanent Account Number in the manner, as may be prescribed;(b)has been allotted a Permanent Account Number, and who has intimated his Aadhaar number as per sub-section (6) may furnish or intimate or quote his Aadhaar number in lieu of the Permanent Account Number.