Senior Pakistani officials have called for a biometrics-backed audit of the country's pension system amid claims that thousands are claiming false benefits.Last week, the president and chief executive officer of the National Bank of Pakistan, Syed Ahmed Iqbal Ashraf, told the Senate Standing Committee on Finance and Revenue that at least 600,000 `ghost pensioners' had drawn money from the public exchequer.He said the number of people receiving pensions from his bank had dropped from 2.2 million to 1.6 million recently after an internal reform eliminated 600,000 `ghost pensioners'.Members of the committee said on Monday that a biometric system linked to bank accounts could root out any remaining fraud.The Accountant Generals of Khyber Pakhtunkhwa and Sindh proposed that the committee introduce a biometric system for the verification of pensioners' identities.The committee has now said it will develop proposals for simplification of pension procedures and facilitation of the pensioners within 15 days.