Manjula Dwadasi vrata is an auspicious puja dedicated to Lord Vishnu. In 2012, Manjula Dwadasi date is April 17. It is observed on the following day of Varuthini Ekadasi, Krishna Paksha Ekadasi in Vaishakh month in North Indian Hindi calendar and in Chaitra Month as per Marathi, Kannada, Telugu & Marathi Calendars.
Manjula Dwadasi is associated with the name of apsarasa Manjughosha (apsarasa is celebrated nymph as per Hindu religious history). When she disturbed the penance of a Sage he cursed him. After observing Ekadasi vrata, Lord Vishnu blessed her liberation.