Complex sentence: It is a large parallelogram having twelve projected circular bastions on each side & several and several wells situated along the wall has yielded Painted Grey Ware (circa 1100-800 BC) & Rangmahal Ware (1st 3rd century AD).
Split into simpler sentences: It is a large parallelogram having twelve projected circular bastions on each side. Several wells situated along the wall have yielded Painted Grey Ware (circa 1100-800 BC) and Rangmahal Ware (1st-3rd century AD).