Pradosh, or Pradosha, is an auspicious day dedicated to Lord Shiva and it falls on the 13th day of every lunar fortnight in traditional Hindu calendar. Shiva devotees undertake a fasting from sunrise to sunset on the Pradosham day. When the Pradosh Vrata day falls on a Tuesday it is known as Bhauma Pradosh. Bhauma is another name of planet Mars or Mangal.
Mangal or Mars is the presiding deity of Mangalwar or Tuesday. There are numerous legends in Hindu scriptures that are associated with Mangal and Shiva. It is said that Bhaum had performed intense Tapas and he was blessed with Mangal Loka by Shiva.
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