While classified as day schools, both have a small number of boarders as well.

Programs in the Kolkata Office focus on information dissemination, research, networking, advocacy and training on interlinked issues of gender, sexuality, human rights, sexual and reproductive health, and HIV/AIDS prevention, care, support and treatment.

This office implements programs in training and technical assistance with a focus on building the capacity of sexual health agencies in the eastern states.

The Kolkata office contains and oversees a Reference Library with materials regarding sexuality, human rights, gender, sexual health, and HIV/AIDS.

La Martinière Calcutta (informally known as LMC) comprises two single-sex private schools in Calcutta, India.

Most of the Kolkata programs involve partnerships with voluntary and government agencies working with sexual minorities, People Living with HIV (PLHIV), women, youth and other vulnerable populations in eastern and northeastern India.

The Kolkata office also oversees a Field Office in Bhubaneswar, Odisha.However, following a Calcutta High Court order, they started to admit students from all backgrounds in 1936.The schools offer an English-medium education from nursery up to the higher secondary level.They are affiliated to the Council for the Indian School Certificate Examination which conducts the ICSE and ISC examinations at the close of Classes X and XII respectively.The school is one of the oldest in India, having been established in 1836 in accordance with the will of the French soldier of fortune and philanthropist, Major General Claude Martin.They are both Christian schools, controlled by the Protestant Church of North India and independent from the Government.