New Delhi March 30CBSE Class 12 economics paper will be held on April 25. The Board has not decided a date for Class 10Maths re-exam. The CBSE board has decided to re-conduct exams for Class 10 Mathematics and Class 12 Economics paper on Wednesday after the paper leak was reported from Delhi. Education Secretary Anil Swarup told the media today that as the leak was restricted to Delhi and Haryana of Class 10 Maths if it at all a re-exam will happen, it will happen only in Delhi and Haryana, and a decision will be taken on this in next 15 days.