Sankashtahara Chavithi, also known as Sankashta Chaturti, is an auspicious day dedicated to Lord Ganesha in a traditional Hindu lunar month. Sankashtahara Chavithi January 2011 date is January 22. The Chavithi which falls during the waning phase of the moon is chosen for fasting dedicated to Lord Ganesh– fourth day after the full moon. Vinayaka devotees observe a fast (fasting or upvaas) on this day from sunrise and ends after sighting the moon.
The importance of Ganesh Sankashtahara Chavithi Vrata was narrated by Lord Krishna to Yudhishtira, the eldest among the Pandavas. The importance of it is also narrated in the Narasimha Purana and Bhavishaya Purana.
Fasting on Sankashtahara Chavithi begins at sunrise and ends after moonrise – sighting of moon in the evening. Devotees offer special pujas and worship at Ganesha Temples.
There is a popular belief that observing Sankashtahara Chavithi will bring material progress, prosperity and happiness and it will also help in the fulfillment of desires.