Correct Option (b):
The pair "Stock Exchange Concurrent List" is not correctly matched. Regulation of stock exchanges and futures markets falls under Entry 48 of List I (Union List) of the Seventh Schedule of the Constitution. Therefore, it is an exclusive subject for the Union Parliament, not a concurrent one.
Incorrect Options:
Forests Concurrent List: This pair is correctly matched. Forests were originally in the State List but were transferred to the Concurrent List by the 42nd Amendment Act of 1976 (Entry 17A). This allows both the Union and State governments to legislate on the subject.
Post Office Savings Bank Union List: This pair is correctly matched. Post Office Savings Bank is listed under Entry 39 of List I (Union List) of the Seventh Schedule, granting exclusive legislative power to the Parliament.
Public Health State List: This pair is correctly matched. Public health and sanitation, along with hospitals and dispensaries, are subjects under Entry 6 of List II (State List) of the Seventh Schedule, placing them primarily under the legislative domain of the State governments.