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अष्टाङ्ग नमस्कार (Sanskrit: Ashtanga Namaskara)

Also: अष्टाङ्ग दणडवत् प्रणाम् (Sanskrit: Ashtanga Dandavat Pranam) Eight Limbed pose; Caterpillar pose; Chest, Knees and Chin pose

A light backbend “where the body is balanced on eight points of contact with the floor: feet, knees, chest, chin and hands” and the buttocks are pushed into the air.

Often used as part of a transition to a cheststand.

https://en.wikipedia.org/wiki/Ashtanga_Namaskara