Importance of Vijayadashami Festival. Popularly known as Dussehra or Dasara or Dashain, Vijayadashami holds a great religious significance among Hindu devotees. Vijayadashami is a major Hindu festival celebrated every year at the end of Navaratri. It is observed on the tenth day of the month of Ashvin, the seventh in the Hindu Luni-Solar Calendar. Vijayadashami - Day of the VictoryVijayadashami,