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| Tamil Nadu Day | |
|---|---|
| Official name | Tamil Nadu Foundation Day |
| Also called | Tamil Nadu Dhinam |
| Observed by | Tamil Nadu, India |
| Type | Foundation Day |
| Significance | Statehood day of the State of Tamil Nadu, formed by the States Reorganisation Act, 1956. |
| Begins | 18 July 2022 |
| Date | 18 July |
| Next time | 18 July 2025 |
| Frequency | Annual |
Tamil Nadu Day, also referred to as Tamil Nadu Dhinam, is a holiday celebrated in the South Indian state of Tamil Nadu to commemorate the formation of the state. Tamil Nadu was created on 1 November 1956 with the name Madras State. On 18 July 1967, Madras State was officially renamed to Tamil Nadu.