"Art and architecture of any building not only indicate its date but also its nature. Karna-ratha and prati-ratha of central chamber visible on either side of western chamber, a large decorated entrance gateway on the eastern wall of the western chamber, a smaller entrance with destroyed image on lalatbimba, birds and animals carved for decoration, suggest that the western wall is remaining part of a pre-existing Hindu temple."
January 1, 1970
https://en.wikiquote.org/wiki/Gyanvapi_Mosque