Recurring / Fortnightly · Twice every month, year-round
Also known as Pradosham · Trayodashi Vrat
When it's kept
Recurring or moving vrats are best checked against this month's panchang for the exact next date.
Significance
Pradosh Vrat is kept to worship Lord Shiva in the twilight hour, said to be when he is in a particularly gracious, dancing form (Nataraja). It is observed for relief from difficulties, for children's wellbeing, and for general prosperity and peace.
The story
One well-known account, tied to the Samudra Manthan (the churning of the cosmic ocean), holds that Shiva drank the deadly poison (halahala) that rose from the churning to protect the universe, holding it in his throat rather than swallowing it — earning him the name Neelakantha. A related legend has the Moon god Chandra, cursed by his father-in-law Daksha to wane away entirely, restored to his cycle of waxing and waning after worshipping Shiva at twilight — the origin devotees cite for observing Pradosh at that hour.
Rituals
Across India
Widely observed as 'Pradosham' in Tamil Nadu and across South India, where temple Nataraja-form abhishekams draw large crowds on the evening of Trayodashi; in the North it is kept more often as a household vrat. Som Pradosh (on a Monday) and Shani Pradosh (on a Saturday) are considered the most powerful of the fortnightly occurrences.
Questions
Pradosh Vrat is a fast kept on Trayodashi (the thirteenth tithi) of each lunar fortnight, with worship of Lord Shiva performed specifically in the pradosh kaal — the twilight window around sunset.
The pradosh kaal is considered Shiva's most gracious hour, linked to the legend of the Moon god's curse being lifted through worship offered at that time.
When Trayodashi falls on a Monday it is called Som Pradosh, and on a Saturday, Shani Pradosh — both considered especially potent combinations, doubling the day's own significance (Monday for Shiva, Saturday for Shani).
Book a pooja in your name, or check this month’s panchang for the exact next date.
