It is true that the Rigveda does not provide us details of the inner layout of these forts, but surely the text was not meant to be a treatise on Vas… - B. B. Lal

At Ayodhya, as many as fourteen trenches were laid out at different spots, one of which was the area known as the Janmabhumi. Over here is a trench hardly three metres to the south of the compound wall of the structure known as Babri Masjid, a series of square brick-bases, running in parallel east-west and north-south rows, were discovered within about 25-30 cm. below the surface. Since one row of these pillar-bases lay under the edge of the trench towards the compound wall of the mosque, it is likely that there may exist many more such pillar-bases in the unexcavated area in that direction. Stratigraphic evidence indicates that these pillar-bases are ascribable to a period around A.D. 1100. From the level associated with the destruction of these pillar-bases has been found glazed pottery ascribable to fourteenth-fifteenth century A.D.

In the mosque there are fourteen stone pillars some of which appear to be in position and oriented east-west and north-south. On the basis of the decorative motifs, sculptures, etc. these pillars are also ascribed to the eleventh century A.D. In all probability, there the brick-bases found in the excavations and the stone pillars standing in the mosque belong to one and the same structural complex which stood at the site immediately before the Babri Masjid.

I don't say so, but my spade tells me so.