Central Board Of Secondary Education [CBSE] — 12 th exam result

Sir, my son athul Antony Joseph passed out 12 th standard from sivagiri Vidhyaniketan school, ernakulam district, Kerala in this year. He scored 95.6% marks in 10th board exams and good scores in 11th and 12th as well compared to other students in his school. But when 12 th results were published his score was 82% which was much lower than every other student who scored very less marks in each of the exams in the previous years. We got bad response from the school authorities and class teacher when we approached them to know about this cause. We aren't satisfied with this result and please kindly do the needful... His roll number in 12th is 24623839 and we hereby attach 10th results. Thankyou