
Every year, Dev Diwali is celebrated on the Purnima Tithi of the month of Kartik. This year, the Purnima Tithi will begin at 11:42 PM on 223 November and end at 08:23 PM on Nov 24, 2026. Therefore, Dev Diwali will be celebrated on 24 November 2026.
This year, several auspicious yogas and muhurats are being formed on Dev Diwali.
On this day, worshipping Lord Shiva during this special muhurat is considered extremely auspicious and brings his blessings.
It is believed that the story of Dev Diwali is connected to the demon Tripurasura. Once, there was a demon named Tripurasura who performed penance to please Lord Brahma and asked for the boon to be immortal. But Lord Brahma refused to grant this boon. Then he requested a boon to make it impossible to kill him.
Then Lord Brahma said that he should only be killed during the Abhijit Muhurat and by a single arrow. Tripurasura began doing evil deeds and sins throughout the three worlds. His wrongdoings became unbearable, and all the Gods were distressed by this. After that, all the Gods requested Lord Shiva to kill Tripurasura. On the day of Kartik Purnima, during the Abhijit Muhurat, Lord Shiva killed Tripurasura with a single arrow, bringing peace again.
This is why Lord Shiva is known as Tripuri, and it is considered auspicious to worship him on Kartik Purnima (Dev Diwali)
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