Section 2(1)(p) in The Mental Healthcare Act, 2017
(p)"mental health establishment" means any health establishment, including Ayurveda, Yoga and Naturopathy, Unani, Siddha and Homoeopathy establishment, by whatever name called, either wholly or partly, meant for the care of persons with mental illness, established, owned, controlled or maintained by the appropriate Government, local authority, trust, whether private or public, corporation, co-operative society, organisation or any other entity or person, where persons with mental illness are admitted and reside at, or kept in, for care, treatment, convalescence and rehabilitation, either temporarily or otherwise; and includes any general hospital or general nursing home established or maintained by the appropriate Government, local authority, trust, whether private or public, corporation, co-operative society, organisation or any other entity or person; but does not include a family residential place where a person with mental illness resides with his relatives or friends;