While hearing a suo motu case regarding irregularities and non-payment of salaries to Pakistan Railways (PR) workers, the Supreme Court (SC) on Monday ordered the PR authorities to curb corruption in the department.A three-member bench led by Chief Justice of Pakistan (CJP) Iftikhar Muhammad Chaudhry heard the case. PR Chairman Arif Azeem, counsel for PR Rai Nawaz Kharal, Attorney General Maulvi Anwarul Haq, the National Accountability Bureau (NAB) additional prosecutor general and former Railways Board secretary Shafiqullah appeared before the court.