In case of misplacement of receipts given by the school/institution towards charges received from the parents/guardian, reimbursement may be allowed if the Government servant produces a duplicate receipt, duly authenticated by the school authorities. Receipts from private parties, other than the school, if misplaced shall not be entertained, even if a duplicate receipt is produced. Original receipts from school authorities need not be attested/ countersigned/rubber stamped by the school authorities. O.M. No.12011/07(i)/2011-Estt.(AL) dated 21.02.2012 refers