His ideology and vision were developed from the above three concerns. His mission was to provide the best education to the children to overcome the problems and challenges in society. With this concept in mind he started Denuma Education Institute in 1974 at Wattala. This institute has immensely helped the children of the area with its rapid development.

His next step was to introduce an International School to provide systematic education and to enhance the English Language competency amongst the children.

Having started with just 14 students and 2 teachers on 7th September 1998 he built and developed the OKI International School into what it is today. He accomplished this task within a short period of time. The seed he sowed 22 years ago has grown into a huge tree.

The helmsman along with the impetus behind the progress, development and achievements of OKI International School was its founder Chairman, Late Mr. Nimal Saparamadu. He had a great determination to elevate the school onto greater heights and due to his tremendous effort, commitment and dedication he accomplished his task and adapted a holistic and integrated learning approach in education. The children were encouraged to recognize, appreciate and preserve the traditional values and rich culture of our motherland.