Kartik Purnima 2023: Purnimahas its great significance in Hindu religion. Kartik Purnima holds an immense religious and spiritual importance. On this auspicious day people observe fasting and offer prayers to Lord Vishnu. Devotees can observe Satyanarayan Vrat on both days i.e., on Chaturdashi Tithi i.e., November 26 as well as on Poornima Tithi i.e., on November 27, 2023.