A complete Saptashati Path (13 chapters + Kavacham + Argala + Keelakam) takes approximately 2 to 3 hours for a fluent reader. Beginners can take 5-6 hours. You can split it over 7-9 days.
The core of the Saptashati is the Navarna Mantra: Om Aim Hreem Kleem Chamundaye Vichey . It is recommended to chant this mantra 108 times before opening the PDF to read. This aligns the mind's frequency with the energy of the Goddess. durga saptashati tamil pdf