She founded many NGOs in Chennai and across India, and is often credited with setting up the oldest organized social-work bodies in the country.
Her organization Guild of Service operates more than a dozen units related to orphanages, female literacy, the care and rehabilitation of disabled people, etc.
[3] In 1942, with World War II raging, Clubwala founded the Indian Hospitality Committee with helpers drawn mostly from the Guild of Service.
Mrs. Clubwala persuaded women from all communities and walks of life to join in the effort to organise mobile canteens, hospital visits, diversional therapy and entertainment programmes.
The victorious 14th Army presented Mary a Japanese sword in appreciation of her tremendous efforts.