The festival, usually celebrated every year in July, is the most important one of the Jaintias and celebrated after the sowing is over.
'Beh Dein' means to drive away with sticks and 'Khlam' means plague or pestilence.
The main feature of the festival is the making of the "Dein Khlam", "Symlend" and "Khnong", which are rounded, polished and tall tree trunks (not pine trees), felled in a reserved forest.
On the last day, young men led by priests carry bamboo sticks and visit each home beating roof-tops to chase away evil spirits, especially the demon of plague to the accompaniment of drums, cymbals and chanting in Pnar.
This festival is also an invocation to God seeking blessings for a good harvest. Women offer sacrificial food to the spirits of the ancestors.