In 1922, the Association of Nursing Superintendents and Trained Nurses Association were amalgamated and called The Trained Nurses Association of India (TNAI).

The purposes of TNAI are:

• To uphold the dignity and honour of the nursing profession.
• To promote a sense of esprit de corps among all nurses
• To enable members to take counsel together on matters relating to their profession.

The organization of the TNAI makes it possible for all nurses to participate at some level. Beginning with the local unit, which is usually made up of personnel in a specific institution, the level of organization moves to the district, state and national levels The aims of the TNAI center upon needs of the individual member and problems in the nursing profession as a whole. Such aims include Up-Grading, Development and Standardization of Nursing Education; Improvement of Living and Working Conditions for Nurses in India and Registration for Qualified Nurses.

TRAINED NURSES ASSOCIATION (TNAI) – Local unit

TNAI unit was started at K.S.Rangasamy college of Nursing College during 2021.The unit functions actively.