The Class 12 economics paper that leaked this week will be held nationwide on 25 April, the government said today but the Central Board of Secondary Education, or CBSE, appears to be having second thoughts on a re-exam for the Class 10 Maths paper. The re-test will be held for Class 10 students in Delhi and Haryana only if it is required, Union Education Secretary Anil Swarup said. The government said the re-test was being held for the Class 12 paper without waiting for a detailed inquiry to ensure that the results were declared in time for students to meet deadlines for university admission.