In Hindu religion, each day of a week is dedicated to a particular God or Goddesses. Friday or Shukrawar is dedicated to Shakti-the Mother Goddess in Hinduism - and Shukra or Venus. One of the most important Vrat or Upvaas (fast) on the day is dedicated to Santhoshi Matha (an incarnation of Shakti).
The fasting is also known as 'Solah Shukravar Vrats' because a devotee fasts for 16 consecutive Fridays. White color is given importance on Friday.
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