To calculate percentage, sum obtained marks and divide by total maximum marks, then multiply by 100. Students should follow CBSE guidelines as practicals and subject rules may vary.

The CBSE decision to introduce On-Screen Marking for the evaluation of Class 12 answer books will also help save transportation time and costs, as physical answer books will not need to be moved.

Messages between David Gelernter — who made headlines in 1993 when he was wounded by a "Unabomber" explosive — and Epstein were among the documents released in January.