After uphill trekking about 2-2.5 hours you will reached at plain terrain where you will find chimney like rock carved tower which is summit point of trek. Generally people called it fort but actually it used as watchtower in history. The internal ladder is spiral in shape. You can find the ruins of temples, cannons, architecture at there. it were controlled by many empires from marathas to british empire between 1500-1947 BC. The scene of valley from summit point is indescribable. You can imagine that how the ancient empires make such fort on this height and operate it. They were amazing ruler.