This incomplete tower known as Alai Minar was commenced by the ambitious Sultan Alau d-Din Khalji (A.D 1296-1316). He had great intentions to build it double in dimension (i.e. on plan & elevation) to that of Qutb Minar. But unfortunately he died while the construction was in progress. He could not complete even its first storey. And then none of his successors tried to take up the execution furth