New Delhi, Nov 23: The Common Admission Test (CAT) for the Indian Institutes of Management being held today were cancelled following leakage of question papers. The decision was taken after Union Human Resource Development Ministry contacted authorities at IIM, Ahmedabad, the coordinating body for the All India Exams, which said the leaked papers matched the original, official sources said. The ministry officials had contacted the IIM authorities on the directive of Human Resource Development Minister Murli Manohar Joshi. The fresh dates for the exams would be announced later, the sources said. Bureau Report