One of the most important prayers that is recited during Navratri is the Devi Mahatmya or Durga Saptashati and it contains 700 Verses. Some of the other prayers that are chanted are Durga Chalisa, Lalita Sahasranama Stotram etc. Apart from these long prayers there are also simple Navratri prayers dedicated to Hindu Goddesses which can be chanted during any prayer and meditation. Here are some simple Navratri Prayers.
Prayer to Mother Goddess
Ya devi sarva bhuteshu
shakti rupena samsthita
namastasye namastasye namastasye namo namah!
shakti rupena samsthita
namastasye namastasye namastasye namo namah!
Prayer to Goddess Durga
Prostrations to Mother Durga
Prayer to Goddess Lakshmi
Prostrations to great Mother Lakshmi
Prayer to Goddess Saraswati
Prostrations to Mother Saraswati
Prayer to Goddess Kali
OM Sri Maha Kalikayai Namah
Prostrations to Mother Kali
A prayer that can be chanted on all days of Navratri this is the (नवार्ण मंत्र) Navarna Mantra:
ऐं ह्रीं क्लीं चामुंडायै विच्चे
A prayer that can be chanted on all days of Navratri this is the (नवार्ण मंत्र) Navarna Mantra:
ऐं ह्रीं क्लीं चामुंडायै विच्चे