Happy Kali Chaudas 2021! The festival of Kali Chaudas is celebrated on the Chaturdashi of Krishna Paksha in the Kartik month. This is the second day of the Panch-Divas (five day) festival of Diwali. The festival of Kali Chaudas is celebrated to commemorate the victory of Lord Vishnu over Narakasura and this festival is closely related to the worship of Goddess Kali.