A high definition survey, using 3D laser scanning technology, was carried out on the structure as a precursor to conservation works. This was followed with a stone-by-stone assessment of the entire structure to map the profile and defects on each individual stone coupled with photo and video documentation. To complete a structural analysis pits were dug to study the foundations – which were surprisingly found to reach a depth greater than five metres.
Archival research revealed sketches dating from the early 19th century, descriptions and a continuous record of photographs from the mid 19th century. Stone-by-Stone condition assessment of the domes, exterior and interior façades of the monument was done manually on the images by visual inspection of each stone its defects and its causes. Past, yet recent, repairs at Chausath Khamba included filling cavities created by broken marble edges with white cement. This needed to be carefully removed.
Each stone was closely inspected to list required repairs by indenting or to assess if it is not possible to repair and requires replacement.