This charitable religious order, founded by Mother (St) Teresa, helps large numbers of the city's destitute sick and dying. Volunteers are universally welcome, with no minimum service period, experience or specific skills required other than a warm heart and patience to listen to and empathise with those whose language they may not understand.

Volunteers need to attend an orientation briefing, held three times weekly at Sishu Bhavan, two blocks north of Mother Teresa's Motherhouse. A volunteering 'day' starts at 7am with a bread-and-banana breakfast at the Motherhouse, and is generally over by early afternoon.