It also proposes that the system of preference votes be abolished and the tenure of the Parliament and the Provincial Council fixed at five years. (Colombo Gazette) The UNP constitution also proposes as a novel system the executive powers of the President to be exercised on apolitical basis and to be subject to checks and balances. The opposition United National Party (UNP) today handed over its proposals for a new constitution to the Sri Lanka Freedom Party (SLFP).A UNP delegation including UNP General Secretary Tissa Attanayake and UNP MP Ravi Karunanayake handerd over the proposals to SLFP General Secretary Maithripala Sirisena. Under the Westminster system the Cabinet of Ministers will be restricted to 25 including the Prime Minister.The proposed constitution of the UNP also guarantees the freedom of expression and will be strengthened to include the right to information. The UNP had last month made public its proposed constitution which includes a British style Westminster system for the Cabinet.