Polu Khenpo Dorje (Wyl. spo lu mkhan po rdo rje) or Thupten Kunga Gyaltsen (c. 1896-1970) — was born in the Polu valley of Derge region of Tibet. His father was called Lhagyal. Entering Polu Monastery, he learned to read and write, and studied with Gönchen Shar Lama Jamyang Khyenrap, a personal student of Mipham Rinpoche. He also studied with teachers at Palyul, Dzongsar, and other monasteries, and after a while he became Polu Monastery's abbot. He was one of the principal disciples of Khenpo Ngawang Palzang, he was regarded as one of the most accomplished Dzogchen masters of recent times. He is sometimes called Bomta Khenpo (Wyl. sbom mda' mkhan po), because of his benefactors, the Bomta Tsang, who were one of the wealthiest families in Tibet.