The Chida-dadhi Mahotsav, also known as the Chipped Rice Festival of Panihati, is a yearly celebration of the pastimes of Srila Raghunatha dasa Goswami and Lord Nityananda Prabhu. Thisastonishing pastime took place on the banks of the Ganges at Panihati, which is just north of Calcutta. Lord Caitanya and his associates enjoyed many transcendental pastimes here. Chida-dadhi Mahotsav remembers how the Lord mercifully reciprocated with His devotees by arranging, through Nityananda Prabhu and Raghunathadasa, to provide an ecstatic feast of yoghurt and chipped rice,along with various other nectar foodstuffs. Linked below is an excerpt from Caitanya-caritamrta, Antya lila chapter 6, which describes this wonderful pastime in detail.