Lalitha Trishati Namavali is dedicated to Maha Tripura Sundari and it contains the 300 names of the Goddess. Below is Lalitha Trishati Namavali in Bengali pdf and it is from the Brahmanda Purana. Chanting the prayer on Friday is considered highly auspicious. It also highly auspicious to chant the mantra for three consecutive days starting from Shukla Paksha Ashtami to Shukla Paksha Dashami – the eighth, ninth and tenth day of the waxing or light phase of moon – these days fall after Amavasya or no moon day. The Namavali should be chanted in the evening. Those chanting for three consecutive days should make sure that particular tithi is present during the evening time. A person chanting the Namavali should avoid non-vegetarian food, alcohol and smoking. The person should chant the mantra after bath wearing neat dress and offering prayers to Goddess Maha Tripurasundari. You can download Bengali Trishati Namavali here in pdf