Sikkim Day
| Sikkim State Day | |
|---|---|
| Also called | Sikkim Diwas | 
| Observed by | Sikkim, India | 
| Significance | The day the state of Sikkim was formed by the Thirty-sixth Amendment of the Constitution of India in 1975. | 
| Celebrations | Parades | 
| Date | May 16 | 
| Frequency | Annual | 
Sikkim State Day is celebrated on May 16, to commemorate the formation of Sikkim as the 22nd state of India in 1975.