The Pakistan Government has said it will not resign following a court ruling which overturned an amnesty for politicians facing corruption charges. Interior Minister Rehman Malik said the government has no intention of bowing to opposition's demands to stand down. Senior figures including Interior and Defence ministers are among those affected by the Supreme Court ruling. President Asif Ali Zardari pledged to fight back as the ruling Pakistan People's Party said it has complete confidence in his leadership. The beleaguered President made a vow to fight back while chairing a meeting of the PPP's central executive committee to review the fallout of the apex court's decision to strike down the National Reconciliation Ordinance.The party also decided that federal ministers facing graft charges following the scrapping of the NRO by the apex court on Wednesday will defend themselves in court instead of resigning.Meanwhile, a lawyer has filed a petition in Pakistan's Supreme Court challenging any move to reopen graft cases in other countries against President Zardari on the ground that he enjoyed immunity under the constitution. In the petition filed with the Lahore registry of the apex court, lawyer Zafarullah Khan said the Supreme Court has no jurisdiction to order the reopening of cases against the President outside Pakistan as the constitution and international laws provide immunity to the head of state from being tried in courts.