My ward has opted for Medical stream in 11th class and hopes to eventually get admission in a MBBS course. However, in case of non-selection he would like to take admission for an Engineering degree after dropping an year after 12th for which he would require Maths. Do CBSE rules allow him to appear for 12th level Maths paper independently as a Private Candidate one year after his 12th exams (which would be ideal in his case)? Alternatively, would he be required to register for Maths subject in XIth (or XIIth) as an additional subject for 12th class? pls guide!