Devimahatmyam or as it is popularly known as Saptashati Chandi is a part of the Markandeya Purana in which one finds the story of the Divine Mother in her various forms. As Vishnu Maya She kills Madhu and Kaidabha. This describes the Tamasic form of the Mother. As Mahalakshmi She kills Mahishasura. In this form She represents her Rajashic nature. As Mahasaraswati She kills Shumbha and Nishumbha. This is the Sathvic form of her. It consists of Chapters 74 to 86 (13 chapters) of the Markandeya Purana and has 700 stanzas. This is one of the most powerful renderings that one finds in Sanskrit Stotra Literature.