The Iron Pillar of Delhi
- Date of account
- Probably Gupta period, c. 4th–5th century CE; relocated before modern study
- Location
- Qutb complex, Mehrauli, Delhi
- Source
- model_recalled_reference
- Record updated
- 2026-10-10
Record summary
The Delhi Iron Pillar is a large wrought-iron monument with a Sanskrit inscription generally associated with a Gupta ruler, often identified as Chandragupta II. Its resistance to extensive corrosion has prompted metallurgical studies of composition, forging, slag, phosphorus, and environmental conditions. The pillar matters for comparing ancient iron production, monumental display, and the movement or reuse of objects. Its original location is uncertain, and popular claims that it is ‘rust-proof’ or technologically inexplicable simplify a complex corrosion process and a documented historical artifact.
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