Losoong is a traditional festival that marks the end of the harvest season, of the Bhutia tribe. It is celebrated every year in December.

Based on the Tibetan Lunar Calendar

The dance forms performed in the festival depict narrativized tales from the life of Padmasambhava (or Guru Ugyen).

Celebration begins after the priest offers 'Chi-Fut', special alcohol, to the gods. After the offering to gods the effigy of the demon King is burnt. Burning the demon represents destroying the evil.

Certain competitions are organized and merrymaking lasts for several days. The festival is also called Sonam Losoong. Losoong festival is very famous in eastern India.