http://www.rskschool.com/ The R. S. Krishnan Higher Secondary School is located in Tiruchirapalli (Trichy), Tamil Nadu, India.

It was run by the Montfort Brothers of St. Gabriel until 2006, when the Singapore-based Global Indian Education Foundation took over the management of the school.

syllabus was exclusive in all of R.S.K's classes until 2000, after which due to public demand and the trends in the Professional Courses admissions in Tamil Nadu, the Management introduced (Tamil Nadu) State Board as an additional alternate syllabus for Classes XI and XII.

The school has stopped supporting state board from 2022 allowing only CBSE students to continue The School has a strong Alumni network and a very active association called the Old Students' Association (OSA).

Among its many activities, happens to be the organizing of the cultural -Technical and sports festival OSCAR (Old Students' Celebration At R.S.K.).