S't Mary's Higher Secondary School, the first in the district, situated at Cox Colony in the district of Jharsuguda in Odisha, though had a very humble beginning in the year 1959, it continued to grow in leaps and bounds excelling in academic performance as well as other co-curricular activities, its former students are all well placed successful persons serving as beaurocrats, doctors, engineers, Chartered Accountants and Businessmen both in India and abroad. it is now full fledged School with a strength of 1800 students and is well known for trend setting. It is the first School in the locality to impart education by way of smart classes