This change was heralded by the arrival of the True Arch. Before proceeding any further, it might be a good idea to explain the difference between a True Arch and its immediate predecessor the corbelled arch. The first use of the True Arch in India is perhaps in the mausoleum of the last slave king Ghiyas-ud-din Balban in 1287. The shape of the True Arch is there, but the builders have cleverly shaped corbelled arches to make them look like a True Arch. How did the True Arch and the Corbelled Arch coexist over the next few centuries?

Source: dna January 07, 2018 02:26 UTC