How did the President's power to make exceptions or modifications in laws apply to major ports and aerodromes after this amendment?
After the amendment, the President's power to make exceptions or modifications in laws applied to major ports and aerodromes by issuing a public notification specifying the date from which these changes would take effect. The notification could either exempt major ports and aerodromes from certain laws made by Parliament or State Legislatures, or it could modify how these laws apply to them. Additionally, the President could use this power to make exceptions or modifications in existing laws that currently apply to major ports or aerodromes, so they cease to have effect except for things done before the specified date or are subject to specified exceptions or modifications.