Supreme Court today gave a 24-hour ultimatum to the government's anti-corruption agency to reopen cases within and outside the country that were quashed under a now-defunct graft amnesty. President Asif Ali Zardari and several of his close aides were among over 8,000 people who benefited from the National Reconciliation Ordinance, NRO that was passed in 2007 by former military ruler Pervez Musharraf as part of a tacit understanding with the Pakistan People's Party to prolong his regime. The Supreme Court also made an indirect reference to the constitutional immunity enjoyed by Zardari saying even a "king" cannot enjoy the benefits of the defunct NRO.The apex court issued the ultimatum to the National Accountability Bureau while hearing a case related to graft charges that were dropped under the National Reconciliation Ordinance, which was struck by the court last year.The court also slapped a contempt of court notice on NAB’s acting chairman Naveed Ahsan.Zardari's aides have maintained that he is not affected by the ruling as he enjoys constitutional immunity from prosecution by virtue of being President. The court also warned the NAB chairman that he might be put behind bars if the judicial orders were not implemented.