chennai students of schools affiliated to the council for the indian school certificate examination in tamil nadu performed better this year with a 127 rise in pass percentage compared to 9819 in 2013 the southern region outdid the rest of the country for the fourth time in a row with tamil nadu securing 9946 pass rate against 9527 nationwide as many as 68723 candidates took up the indian school certificate examination isc including 556 from the state the overall pass percentage for class 12 saw a raise of 012 from last year ayush banerjee a student from loyola school jamshedpur secured 9925 topping the ics boards shruti agarwal from city montessori school lucknow and rohini c from sheiling house school kanpur scored 99 and was placed second in tamil nadu 9946 of the 556 who appeared for the isc exam cleared the boards following the tradition girls scored slightly better than boys with a pass percentage of 9964 which is 036 more than that of boys there were only three candidates who did not clear the exam in tn aashika treesa saju a student of sishya school topped the state by securing 98 followed by sujith mathew john from ida scudder school vellore who scored 9775 as many as 23 schools presented candidates for the isc board which was two more than last year while 213 appeared under the special difficulty category overall none appeared under this category from the state