“Pakistan introduced a bicameral federal legislature under the constitution of:”

"Pakistan introduced a bicameral federal legislature under the constitution of:"
Answer: "1973"

"The 1973 Constitution established Pakistan’s bicameral federal legislature comprising the National Assembly and Senate ensuring balanced representation and legislative oversight. This framework remains central to Pakistan’s governance. Understanding this system highlights the evolution of democratic institutions the balance of power in federal structures and the challenges of legislative reforms in a diverse nation critical for political studies."