2001 - 2002
N.S.N. Matriculation Higher Secondary School was started at Chitlapakkam.
2012 – 2013
N.S.N. Memorial Senior Secondary School, affiliated to CBSE, expanded its academic framework.
2017 – 2018
Received NABET Accreditation from the Quality Council of India, New Delhi, ensuring top-tier educational standards.
2018 – 2019
N.S.N. Memorial School reached new heights as a fully fledged Senior Secondary CBSE Institution.