In federal systems, upper chamber of the legislature is considered as a
representative institution of the smaller units but the evidences suggest that
the parliamentary features of federations limit the territorial role of the
upper/federal chamber. This is because the relative party discipline in
parliamentary democracies and the supremacy of popular house on the
second chamber in such federations. Building on this proposition, the paper
attempts to determine the territorial character of Pakistani Senate through
evaluating its role for pro-autonomy legislation during the debates over 18th
constitutional amendment in Pakistan. The evidence demonstrates
congruence of opinion between the Senators and the members of National
Assembly over certain autonomy issues. Hence, it seems to suggest that the
parliamentary nature of the institutions limits the territorial of the Senate of
Pakistan