Navratri, the festival celebrated in various parts of India. The first mention of navratri comes from the Markandeya Purana, where it's mentioned how the nine forms of the Goddess Durga are to be worshipped during this period. It's a time to pray, fast and feast. The nine days of Navratri, leading up to Dussehra and culminating on Diwali, is a special time for lot of people around the country. The sole purpose of the ritual fasts associated with these festivals is to purify, cleanse or detoxify the body.