terache - at an angle; paḍila - fell down; thāli - the plate; māthā - the head; kāṭi' - cutting; gela - went; mūrcchita - unconscious; hañā - becoming; ācārya - the teacher; bhūmite - on the ground; paḍila - fell down.

The plate was made of metal, and when its edge hit the head of the teacher, it cut him, and the teacher immediately fell to the ground unconscious.