Ganesh Chaturthi (ISO: Gaṇeśa Caturthī), also known as Vinayaka Chaturthi (Vināyaka Caturthī) or Vinayaka Chavithi (Vināyaka Cavithī) or Vinayagar Chaturthi (Vināyagar Caturthī), is a Hindu festival celebrating the birthday of Hindu deity Ganesh. The festival is marked with the installation of Ganesha's murtis (devotional representations of a deity) privately in homes and publicly on elaborate pandals (temporary stages). Observances include chanting of Vedic hymns and Hindu texts, such as prayers and vrata (fasting).
https://en.wikipedia.org/wiki/Ganesh_Chaturthi