"Subsequently, during the early medieval period (eleventh-twelfth century A.D.) a huge structure, nearly 50 m in north-south orientation was constructed which seems to have been short-lived, as only four of the fifty pillar bass exposed during the excavation belong to this level with a brick crush floor. On the remains of the above structure was constructed a massive structure with at least three structural phases and three successive floors attached with it. The architectural members of the earlier short-lived massive structure with stencil cut foliage pattern and other decorative motifs were reused in the construction of the monumental structure having a huge pillared hall (or two halls) which is different from residential structure, providing sufficient evidence of a construction of public usage which remained under existence for a long time during the period VII (Medieval-Sultanate level-twelfth to sixteenth century A.D.). It was over the top of this construction during the early sixteenth century, the disputed structure was constructed directly resting over it. There is sufficient proof of existence of a massive and monumental structure having a minimum dimension of 50 × 30 m in north-south and east-west directions respectively just below the disputed structure. In course of present excavations nearly 50 pillar bases with brick bat foundation, below calcrete blocks topped by sandstone blocks were found. The pillar bases exposed during the present excavation wall of the earlier construction with which they are associated and which might have been originally around 60 m (of which the 50 m length is available at present). The centre of the central chamber of the disputed structure falls just over the central point of the length of the massive wall of the preceding period which could not be excavated due to presence of Ram Lala at the spot in the make-shift structure. This area is roughly 15×15 m on the raised platform. Towards east of this central point a circular depression with projection on the west, cut into the large sized brick pavement, signify the place where some important object was placed. Terracotta lamps from the various trenches and found in a group in the levels of Periods VII in trench G2 are associated with the structural phase."
January 1, 1970
https://en.wikiquote.org/wiki/Archaeology_of_Ayodhya