From Rangjung Yeshe Wiki - Dharma Dictionnary
Asura Cave (a su ra'i brag phug).
yang le shod kyi brag phug - Cave of Yangleshö. Situated in the southern end of the Kathmandu Valley, near the village of Pharping. The 'Upper Cave of Yangleshö"' is also known as Asura Cave [RY]
- (a su ra'i brag phug) The cave where Guru Rinpoche subdued the evil forces of Nepal through the practice of Vajra Kilaya. Situated near Pharping in the Kathmandu Valley. [RY]