Vijayadashami also known as Dussehra, Dasara or Dashain is a major Hindu festival celebrated at the end of Navaratri every year. Celebrates the victory of good over evil.
Ganesh Chaturthi, also known as Vinayaka Chaturthi, is a Hindu festival celebrating the arrival of Ganesh to earth from Kailash Parvat with his mother Goddess Parvati/Gauri.
There are many Hindu religious festivals around the world. Festivals usually celebrate events in Hindu mythology, usually in line with seasonal changes.