Vijayadashami also known as Dussehra or Ayudhapuja, is an important Hindu festival celebrated in a variety of ways in India, Nepal, Sri Lanka. “Dussehra” is derived from Sanskrit; Dasha-hara is a form of Dashanan ravan (“Ravana’s defeat”).
Mahagauri is the eighth manifestation of goddess Durga and amongst the Navadurgas. Mahagauri is worshipped on the eighth day of Navratri. According to Hindu mythology, Goddess Mahagauri has the power to fulfill all the desires of her devotees.
Kaalratri (sometimes spelled Kalaratri) is the seventh form amongst the Navadurga (ie. the nine forms of Hindu Mother Goddess referenced in Durga Saptashati, Chapters 81-93 of the Markandeya Purana, the earliest known literature on Goddess Durga).
Skandamātā is the fifth form of Hindu Goddess Durga. Her name comes from word, Skanda is another name for war god Kartikeya and Mata is the term for mother. As one of the Navadurga, Her worship takes place on the fifth day of Navaratri.