Under Section 23, the Central Government's power to provide additional capital or pay grants/loans to the Authority is conditioned upon:

Section 23 empowers the Central Government to provide capital (clause (a)) or pay loans/grants (clause (b)) to the Authority on terms it determines, but only 'after due appropriation made by Parliament, by law in this behalf' - meaning such disbursements must be routed through the constitutional appropriation process (i.e., sanctioned through the Finance Bill/Appropriation Act mechanism), not through executive discretion, CAG recommendation, AERA approval, RBI certification, or even a Board resolution of the Authority itself. This anchors AAI's capital infusion squarely within Parliament's power of the purse, a constitutional-financial nuance frequently tested in conjunction with Sections 24 to 27.