Lama Bum (1935-2021) was a Dudjom Tersar practitioner born in Jumla, Nepal. His father was Lama Sherapatsa and his mother was named Damcho Drolma.
After this, he mostly spent his time in retreat through six months retreats, hundred days retreats, and twice completed a three years retreat. Lama Bum completed many practices of the Dudjom Tersar lineage, such as the Sater Ngöndro and the Tröma Nakmo Ngöndro.
Among the main teachers of Lama Bum are:
- Dudjom Rinpoche
- Golok Serta Rinpoche
- Gyepa Rinpoche
- Second Degyal Rinpoche
- Shiva Rinpoche
- Tsokhang Choktrul Tsewang Dorje
- Tulku Pema Rigtsal
- Yangthang Rinpoche
All of the five sons of the Second Degyal Rinpoche were close to Lama Bum and used to visit him, because he knew many things about the life and activities of Golok Serta Rinpoche, of Tsokhang Choktrul Tsewang Dorje and of the Second Degyal Rinpoche.
Lama Bum was known as one of the greatest Ngakpa Lama of in Humla of the recent times. On 19 April 2021, he passed away, two days before the anniversary of the Second Degyal Rinpoche.