February 2 , 2026
19 hrs 0 min
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- Odisha’s Buddhist Diamond Triangle has been added to India’s UNESCO World Heritage Tentative List by the UNESCO World Heritage Centre.
- The Buddhist Diamond Triangle consists of Lalitgiri, Udayagiri, and Ratnagiri, located in Odisha.
- These sites show 1,500 years of continuous Buddhist history, covering Theravada (Hinayana), Mahayana, and Vajrayana Buddhism.
- Lalitgiri is the oldest site, dating back to the 2nd–3rd century BCE, and has a stupa with sacred relic caskets.
- Udayagiri flourished between the 1st and 13th century CE and contains large monasteries and Buddhist sculptures.
- Ratnagiri was a major centre of Vajrayana (Tantric) Buddhism and is often compared to Nalanda.

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