In order to inculcate a healthy spirit of competition and to get the best of each individual students, Karthika High School students are divided into Four Houses. Each House is named after an important personality in our national history. The divisions of the Houses are as follows:

GANDHI HOUSE

Patron : Mohandas Karamchand Gandhi
Colour : Green

RADHAKRISHNAN HOUSE

Patron : Dr. S. Radhakrishnan
Colour : Yellow

SHIVAJI HOUSE

Patron : Chhatrapati Shivaji
Colour : Red

TAGORE HOUSE

Patron : Rabindranath Tagore
Colour : Blue