The ICSE and ISC exam results were announced on Friday, May 17.
The states comprising Tamil Nadu, Kerala, Andhra Pradesh and Karnataka, recorded 99.66% passes in the ICSE examination and 98.528 in ISC Examination, which is 1.46 per cent above the overall ICSE pass percentage.
Of the total 1,40,878 students (including 232 students from abroad), who took the exams in five regions (North, South, East, West and Foreign), 24,963 students appeared in the southern region.
A region-wise analysis of the ISC exam based on the information provided by the Council for the Indian School Certificate Examination indicates that schools in the Southern Region have performed the best, followed by the western region which recorded 97.17 per cent passes.
Bhuvanya Vijay, a national champion debater and a student of St. Joseph's Academy, Dehradun is the national topper who has secured the highest marks in ISC - 99% in Class 12 board exams.
Chennai girl, Apeksha Avinash Somalinga from Sishya in Chennai has done the city proud by bagging the third rank in ISC class 12 exam.
Apeksha had secured 98.5% and has scored full marks in mathematics and computer science.
Ajay Ebenezer Sundararaj from Ida Scudder School in Vellore topped the ICSE class 10 exam in Tamil Nadu with 98.20%.
Like previous years, girls from the Karnataka outperformed boys in the exams. A total of 4,763 and 522 girls appeared for the ICSE and ISC exams, respectively, and their passing ratio was 99.92% in ICSE and 99.43% in ISC.
Alisha Kalyanpur from Inventure Academy, Whitefield was tremendously pleased with her outstanding performance of 98.2% in ICSE.
Sanitha Jugulum from Bishop Cotton Girls' School, St Marks Road notched up a staggering 98.6% in ISC Commerce and topped her school in the stream.
Alistair Lewis, a student of Clarence High School, Richards Town, was among the toppers in the City in ISC, having scored an excellent 98%.
Students from the Andhra Pradesh have dominated the ICSE class 10 and ISC class 12 results with an impressive pass percentage of 99.07% and 94.77% respectively. Girls outperformed boys with a higher pass percentage.
While 6,321 students from 85 ICSE schools from Andhra Pradesh appeared for class 10 exams, it was just 803 students from 17 ISC schools for Class 10 exams.
Of them, 3,186 boys (98.76%) and 3,076 girls (99.39%) were successful in class 12 exams while 40 boys and 19 girls have failed.
In ISC exams, 333 boys (90.74%) and 428 girls (98.17%) have passed in class XII exams while 34 boys and 8 girls did not get through.