The journey of a thousand miles begins with a step, they say and the CIS story begins with a similar narrative.

CIS came into existence as the King’s House School when a British family started homeschooling their two sons at their bungalow in Lee Road and hired teachers to help them with their work. 

Slowly word of this “school” began to spread, encouraging other British families to  start sending their children there and soon a British teacher, Miss Mai Barth was appointed as the Principal.

When the King family returned to the UK, they left the bungalow and the school to Ms Barth and the school was officially registered in 1953. Under her leadership, it became a full-fledged school, called Miss Barth’s School. The school soon evolved to become a reputed institution providing academic and extra mural education. Miss Barth is believed to have been awarded an OBE for her relentless dedication to education.

When Miss Barth retired and returned to England, the parents of the students decided to form a Society to govern the school which received its final name – Calcutta International School Society, in 1970. It was registered under the West Bengal Societies Regulation Act.

CIS shifted from the Lee Road premises to its present sprawling campus at Anandapur, Eastern Metropolitan Bypass, Kolkata, in 2006. Today, CIS is a thriving learning hub, with pupils from as many as 17 nationalities from local and expatriate communities. The school continues to grow in size and stature, adapting to the evolving needs of the students of the future. Priority is given to the children of expatriates, foreign passport holders and NRIs.