Agreed, Ravi. By the way, Google calls it virgin niche!
Still, try to picture it (and think of the illustrations we have seen)--RAmA asking: yArO, ivar yArO?
Supposing SitA's quarters were situated downstairs, it would have been somewhere in the interior, and to see the rAja vIdi (the main thoroughfare), she would had to come to the front door (oh, no!), and how much of the action she could have seen from there anyway? kanni mADam thanil 'munnE' niRpavar--paints the picture of her looking from a vantage point.
Well, an utsava murthy or any parade, even today are preferred to be viewed from an upper level, aren't they?
So, this way, avaL could see him well and ANNal too, isolated from the milling crowd in front of the palace
Popular historic/romance author Chandilyan wrote a novel in that name.