Shasti Vratam is observed on the sixth day during the waxing phase of moon as per a traditional Hindu calendar and is dedicated to Lord Muruga or Kartik. Shasti fasting date in November 2011 is November 1 and November 30. The Skanda Shasti Vratam which begins on November 1 concludes on the day with the Soorasamharam. Muruga devotees observe a fast on the day. Special pujas and rituals are also held on the day in Muruga Temples.
There are two Sashti fasting dates in a month one each during the waxing phase of moon and another during the waning phase of moon. Most devotees fast during the Sashti falling during waxing phase of moon.
Fasting on Sashti is considered highly beneficial and some devotees observe a complete fast for 24 hours. Lord Muruga, also known as Shanmukha and Subramanian, is widely worshipped in South India,
Singapore, Malaysia and especially by Tamilians. In Sri Lanka North India, Lord Muruga is known as Kartik or Kartikeya.
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