Yen means "Kathmandu" and Ya means "celebration", together "Yen Ya", it means "celebration inside Kathmandu" in Nepal Bhasa.
The celebrations consist of two events, Indra Jatra and Kumari Jatra. Indra Jatra is marked by masked dances of deities and demons, displays of sacred images and tableaus in honor of the deity Indra, the king of heaven. Kumari jatra is the chariot procession of the living goddess Kumari.
Here are some of my photography from Indra Jatra 2019.