LAHORE Awami National Party secretary general Ehsaan Wyne has said that all Opposition parties should jointly put pressure on the government to curb corruption. Nawaz Sharif is a patriotic and big leader and he has to decide that to what extent he can go against Zardari. Opposition parties have a right to protest but that doesnt mean of spreading anarchy in the country, he said. Addressing at Aiwan-e-Waqt, he said that MQM had a democratic right to stay in government or sit on the Opposition benches. Every party had a right to launch movement against the government but history witnessed that every movement gave birth to a new dictatorship, he added.