Florence Nightingale School of Nursing is a unit of Rangammal Memorial Rehabilitation Society. The society was formed in 1991. The founder of the Society is Madam. S.M. Wright who is also the Managing Director of the Hospital and the School of Nursing.

She started the village project with a Van and four boxes, often working under the Tamarind trees of nearby villages around Tiruvannamalai. It was not uncommon for 400 patients to attend in a day. Through her vision and great hard work three big institutions have been established in this backward and socially deprived area. Four hundred staff are working in the organization and approximately seventy thousand patients are treated every year as both inpatients and outpatients. In addition, handicapped people are helped in our Schools and Community Programmes.                  

Various activities carried out by society:

• 230 bedded Multi Specialty 24 hrs Hospital, ISO 9001:2008 certified. Visiting consultants from Apollo hospitals, Chennai, attend every Sunday.
• Residential Higher Secondary School for Hearing Impaired Children.
• A teacher training school for teachers of the Hearing Impaired, RCI Register No. RCI-8-389/DSE (HI) 2002, 2 yrs Training Course.
• Two Day Care Centres for severe Cerebral Palsy plus Mentally Retarded Children in Tiruvannamalai and Kilpennathur Village.
• TANSACS – Community Care Centre: Care & Support programme for HIV/AIDS Patients in conjunction with TANSACS, Chennai
• Various Community and Outreach Programmes have been undertaken in partnership with the State Government.

All the units are run with the philosophy of excellence in all the fields of activity.