The city's event calendar is a vibrant mix of civic milestones and deeply rooted tribal celebrations.
* **Statehood Day:** Celebrated annually on February 20th at IG Park with grand parades, cultural tableaus, and exhibitions marking Arunachal Pradesh's establishment as a state. * **Nyokum Yullo:** Held in February, this major agricultural festival of the Nyishi tribe (the predominant tribe in the capital complex) features grand rituals for a good harvest and prosperity. * **Arunachal Film Festival:** A periodic event celebrating regional cinema, local filmmakers, and the growing arts scene in the Northeast. * **Local Bazaars:** Regular community markets and seasonal handicraft fairs serve as ongoing, lively community events.