Complex sentence: Four cave temples have been excavated in the escarpment of the hill to the south-east of the town above the artificial lake called Agastya Lake created by an earthen dam faced with stone steps.
Split into simpler sentences: Four cave temples have been excavated in the escarpment of the hill to the south-east of the town. The escarpment is above an artificial lake called Agastya Lake that is created by an earthen dam faced with stone steps.