Bhubaneswar: To prevent incidents of question leaks and track irregularities, the Board of Secondary Education (BSE) is planning to use barcodes and watermarks in the question papers of Matric Examination-2025. BSE president Srikant Tarai said currently the system is being used in the question papers of the Odisha Secondary School Teachers Eligibility Test scheduled to be held on Jan 17 on an experimental basis. “If this is successful, arrangements will be made to implement the same in the annual matric examination this year,” he said.