Hauz Khas Ruins historical timeline

The complex joins infrastructure from Alauddin Khalji’s Siri with a major educational and funerary project under Firuz Shah Tughlaq.

Chronology

1. 1296–1316 Alauddin Khalji creates the reservoir, then called Hauz-i-Alai, to supply Siri.
2. 1351 Firuz Shah Tughlaq takes the throne and begins restoring older works across Delhi.
3. 1352–1354 The madrasa, mosque, pavilions and Firuz Shah’s tomb are built along the cleared reservoir.
4. 1398 Timur camps near Hauz Khas during his invasion and records the tank and its surrounding buildings.
5. 2004 A modern project begins redirecting water toward the diminished lake after earlier inlet changes left it dry.
6. 2019 Constructed wetlands begin operating to improve inflow and water quality.

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