Navadurga

Navadurga are 9 avatars of Durga. It is celebrated as Navaratri where each avatar is worshipped everyday.

Forms
Durga too has 9 avatars because of which she is called 'Navadurga':

Shailaputri
Main Article: Shailaputri

The word Shailaputri means daughter (Putri) of Mountains (Shaila). Shailaputri mostly refers to Parvathi since she the Daughter of Giri/Shaila.
 * She is worshipped in the first day of Navaratri.
 * Her governing planet is moon
 * The Mantra is Oṃ Devī Śailaputryai Namaḥ(ॐ शैलपुत्र्यै नमः)
 * Iconography: Shailaputri has two hands with a trident in her right hand. She carries a lotus in her left hand and rides on a bull.

Brahmacharini
Main Article: Brahmacharini

The Brahmacharini refers to pious woman or a devotee of God.
 * She is worshipped in the second day of Navaratri.
 * Her governing planet is Mars.
 * The Manthra is: Om Brahmacārinyai Namaḥ (ॐ ब्रह्मचारिण्यै नमः)
 * Iconography: Brahmacharini wears a white sari, she carries a holy chain with lotus and a pot of holy water.

Chandraghanta
Main Article: Chandraghanta

Chandraghanta means the one who carries a moon on her head. Shiva was also called Chandrashekhar due to the same reason. However, Chandraghanta is for female.
 * She is worshipped on the third day of Navaratri.
 * Her governing planet is Venus.
 * Manthra: Oṃ Devī Candraghaṇṭāyai Namaḥ (ॐ देवी चन्द्रघण्टायै नम:)
 * Iconography: Chandraghanta mounts on a tigress. She wears a crescent moon above her head. She has 10 ten hands in the first two hands, she carries a chain and Kamandalu, in her second 2 hands she bless us. In the third 2 hands, she carries Bow and Arrow and in the rest, she carries a Gadha, lotus, trident.

Kushmanda
Main Article: Kushmanda

The word Kushmanda means A little (Ku) warmth and energy (Ushma) and Anda is Brom Brahmanda which means Universe.
 * She is worshipped on the fourth day of Navaratri.
 * Her governing planet is the sun.
 * Manthra: Oṃ Devī Kūṣmāṇḍāyai Namaḥ (ॐ देवी कूष्माण्डायै नम:)
 * Iconography: Rides on a lioness and has eight hands. She holds a kamandalu, Dhanush, Bada, and Kamal in Her right hands. Her left hands hold Amrit Kalash(pot of nectar), japa mala(prayer beads), Gada and Chakra - in that order.

Skandamata
Main Article: Skandamata