This kind of 5 day fast is also prescribed for the last 5 days of Kartika (Damodara) Month and it is known as “Bhisma Pancaka”. During that vrata puja offerings to the Lord are also prescribed. I am listing them below. There are also mantras that go with these offerings. However, I didn’t find any specific mention about this for Purusottama month. In the Padma Purana it only stated that in addition to ekadasee one can observe a “pancaratrika” fast until amavasya.
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