Wikipedia
Gaura-purnima
Gaura-purnima is a Vaisnava festival that occurs in March celebrating the birth of the saint Chaitanya Mahaprabhu.
Gaura Purnima means "Golden Full Moon", a reference to Chaitanya. His followers spend this festival fasting and chanting congregationally, then at moonrise a feast is enjoyed by all.
This festival is celebrated by Gaudiya Vaishnavas as part of Navadvipa-mandala Parikrama.