Varanasi’s Ganga Ghat was illuminated with lamps on Dev Diwali, thousands of people participated in Maha Aarti, see
There is a tradition of celebrating Krishna Chaturdashi of the month of Kartik as Chhoti Diwali, Amavasya as Diwali and Kartik Purnima as Dev Diwali. Fasting and worship of Kartik Purnima has a special significance in the Hindu religion. Watch Dev Diwali special coverage from Varanasi.