Ongoing structural conservation work at a remote Paramara-era Shiva temple in the Vidisha district has yielded a surprising discovery regarding medieval Indian engineering. While reinforcing the temple's shikhara (spire), restoration experts from the Archaeological Survey of India (ASI) identified a series of interlocking iron clamps that appear to have been treated with a primitive form of zinc-coating to prevent oxidation.
This finding suggests that medieval Indian smiths possessed advanced metallurgical knowledge to combat the corrosive effects of moisture within the stone masonry. The restoration project, which aims to stabilize the temple's Bhumija-style architecture, is now incorporating high-tech chemical analysis to understand the exact composition of the protective layer, potentially rewriting the history of early anti-corrosive technology in South Asian heritage sites.