The paucity of treatment facilities and psychiatrists in the Government sector has widened the treatment gap in mental health. Non-governmental organizations (NGOs) have played a significant role in the last few decades in not only helping bridge this gap, but also by creating low cost replicable models of care. NGOs are active in a wide array of areas such as child mental health, schizophrenia and psychotic conditions, drug and alcohol abuse, dementia etc. Their activities have included treatment, rehabilitation, community care, research, training and capacity building, awareness and lobbying. This chapter outlines the activities of NGOs in India. This is a revised version of the chapter in the book on mental health to be brought out by Government of India.