A more logical deduction for the evolution of the urban growth of the town is, however, that earliest settlements started first on the southern part of the town near the south gate and around the perimeter in order to close any gap in the outside wall.  The town then grew in all directions, slowly and gradually, until it was all filled at a certain time in history.
It is interesting to note that the citadel town has no fortified wall with towers like other citadels.  Instead, the contiguous houses that occupied the external perimeter of the mound had massive walls that rose to a formidable height.  Any windows or openings on these external walls were placed on upper floors only.  In other words, there was no wall as such. The town was not inside the wall and the outer wall of perimeter houses was the wall.

Another probability is that there could have been a thick wall that surrounded the town originally as is the case with most medieval towns. In other words, there could have been a town inside the area surrounded by an external and independent wall, and that the perimeter houses that exist today were built on the lower section of the original wall-say sometime during the 18th Century or even slightly earlier.  In fact some historical accounts refer to a wall with towers.  Again, only through detailed archaeological excavations that this puzzle could be solved.

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