Ekadashi Mahatmya (एकादशी महात्म्य)
There is a lot of importance of the stories to be read on Ekadashi ( एकादशी ), popularly known as ग्यारस in normal terms. This book contains all the stories of Ekadashi held during the year in every month (26 Ekadashi) including Adhik / Puroshottam Maas including the Phal-Ahar that is to be taken as meal on Ekadashi.
Ekadashi Falls twice a month, one in Shukla (शुक्ल) Paksha and another is Krushna (कृष्ण) Paksha (Here Shukla and Krushna can also be addressed as Sudi (सुदी) and Badi (बदी) respectively).
