Durga Saptashati which is also known as Devi Mahatmya and Chandi Path is a Hindu religious text describing the victory of the Goddess Durga over the demon Mahishasura. It is part of the Markandeya Purana, written by sage Markandeya.
The text contains Saptashata i.e. 700 verses and because of that the whole composition is known as Durga Saptashati. The seven hundred verses are arranged into 13 chapters. For ritual reading purposes a number of subsidiary texts are appended before and after of 700 verses. A ritualistic reading of Durga Saptashati is part of the Navratri celebrations in the honor of the Goddess Durga.
Durga Saptashati is significant composition to perform Chandi Homa which is one of the most significant Homa(s) done to gain health and to conquer over enemies. Chandi Homa is performed while chanting verses from Durga Saptashati. Total 700 Ahuti i.e. offering to Goddess Durga through sacred fire are made during Chandi Homa.