The Ambubachi Mela is an annual Hindu Mela held at Kamakhya Temple in Guwahati, Assam. This yearly Mela is celebrated during the monsoon season that happens to fall during the Assamese month Ahaar, around the middle of June when sun transit to the zodiac of Mithuna, when the Brahmaputra river is in spate.
Celebrating the menstruation of Goddess Kamakhya, Ambubachi is not just another festivals in India. Though the main temple stays shut for three days, during which the devotees indulge in prayers and farming. On the fourth day, when the door opens, the idol is bathed before letting devotees enter for darshans. The spring water is offered as a form of blessing. Not just the devotees, saints from different parts of India come over and perform rituals. It is one of the unique festival/rituals in India.