Complex sentence: Within this tank is a distinctive natural rock formation that has cropped up above the water surface which is called locally as "Orugallu" (meaning: single Rock) in Telugu which gives its name as "Warangal" to the fort.
Split into simpler sentences: Within this tank is a distinctive natural rock formation that has cropped up above the water surface. This is called locally as "Orugallu" (meaning: single Rock) in Telugu which gives its name as "Warangal" to the fort.