Ninth day Prayers for Navratri is dedicated to Goddess Siddhidatri. It is chanted on October 23, 2023 during Sharad Navratri. During Chaitra Navratri it is on March 30, 2023. Navratri Day 9 Mantra in Hindi is given below. There are three mantras. First is Mool Mantra for eighth day of Navaratri. Second is Dhyana Sloka dedicated to Goddess Siddhidatri. Third is a Stotra. You can chant also prayers like Lalita Sahasranama on the day.