Pavitra Ekadasi, or Pavitropana Ekadashi, is observed during the waxing phase of the moon in Shravan or Sawan month (July – August). In 2016, the date of Pavitra Ekadashi is August 14. The importance of Pavithra Ekadashi was explained to Yudhisthira by Lord Krishna and is found in the Bhavisyotara Purana. Jhulan Yatra. an important festival associated with Lord Krishna, Radha and Lord Jagannath, begins on this Ekadasi day.
This Ekadasi is known as Putrada Ekadasi in Maharashtra,
Gujarat, Andhra Pradesh and Karnataka.
It is widely believed that a son is born to the couple that observes Pavitra Ekadasi. There is an important story in the Puranas that indicate that Sage Lomasa advising a King to observe the Ekadasi so that he will beget a son.
Fasting on this day also washes away all the remorse and regret of sins performed. All grains are avoided on this day. Some staunch devotees stay awake during the night on the day.