Chola-era Anaimangalam Plates, in possession of Leiden University since 1862, returned to India

The Chola-era Anaimangalam Copper Plates, held by Leiden University in the Netherlands since 1862, were formally handed over to India at a ceremony in The Ha...

What Happened

The Chola-era Anaimangalam Copper Plates, held by Leiden University in the Netherlands since 1862, were formally handed over to India at a ceremony in The Hague in May 2026 — making them the first Chola-period copper plates to be repatriated to India.
The plates — a set of 24 copper sheets (21 large, 3 small) weighing approximately 30 kilograms and bound by a bronze ring bearing the Chola royal seal — date to the reign of Rajaraja Chola I (985–1014 CE), with the copper inscriptions engraved by his son Rajendra Chola I to permanently preserve the royal grant.
The plates record a royal land-revenue grant for the construction of the Chudamani Vihara, a Buddhist monastery established at Nagapattinam by Sri Mara Vijayotunga Varman, the ruler of the Srivijaya kingdom (present-day Indonesia) — evidence of the Chola dynasty's maritime reach and inter-civilisational religious patronage.
The plates had been in Leiden University's possession since 1862, acquired during the Dutch colonial period; their return followed diplomatic engagement between India and the Netherlands.
Historians regard the repatriation as significant for two reasons: the plates are primary sources for Chola maritime trade networks linking South India with Southeast Asia, and the return signals a deepening of India's cultural diplomacy using heritage repatriation as a foreign policy instrument.

Static Topic Bridges

The Antiquities and Art Treasures Act, 1972, and India's Legal Framework for Cultural Property

The Antiquities and Art Treasures Act, 1972 is India's primary domestic legislation regulating the ownership, trade, and export of antiquities. It was enacted in alignment with the UNESCO Convention on the Means of Prohibiting and Preventing the Illicit Import, Export and Transfer of Ownership of Cultural Property (1970 Convention), which India ratified on January 24, 1977.

Section 3 of the Antiquities Act, 1972 prohibits the export of any antiquity from India except by the Central Government or its authorised agents — placing export controls at the apex of the legislative framework.
The Act defines an "antiquity" as any article, object, or thing that is not less than one hundred years old, as well as coins, sculptures, paintings, and inscriptions regardless of age if declared as such.
Under the Act, the Archaeological Survey of India (ASI) functions as the nodal authority for regulating antiquity trade, maintaining registers of antiquities, and coordinating repatriation efforts.
A critical limitation of both the UNESCO 1970 Convention and the Antiquities Act, 1972 is that neither applies retroactively — they can only address illicit transfers occurring after their respective effective dates. The Anaimangalam plates were acquired in 1862, well before either instrument, meaning the return was secured through diplomatic negotiation rather than legal compulsion.

Connection to this news: The repatriation of the Anaimangalam plates demonstrates the limits of hard law in recovering pre-1972 acquisitions and illustrates why India increasingly supplements legal instruments with bilateral cultural agreements and diplomatic persuasion. The return was a voluntary act by the Netherlands — not a legally mandated restitution.

Chola Dynasty: Maritime Empire and Cultural Legacy

The Chola dynasty (9th–13th centuries CE) was one of the longest-ruling dynasties in world history and the dominant maritime power of the Indian Ocean during the 10th–11th centuries. Rajaraja Chola I and Rajendra Chola I represent the apex of Chola power.

Rajaraja Chola I (r. 985–1014 CE) expanded Chola control across peninsular India, Sri Lanka, and parts of the Maldives; his most celebrated monument is the Brihadeeshwara Temple at Thanjavur (a UNESCO World Heritage Site).
Rajendra Chola I (r. 1012–1044 CE) led the famous "Gangaikonda" northern campaign reaching the Gangetic plains and launched the Chola naval expedition to Southeast Asia (c. 1025 CE) against the Srivijaya kingdom — establishing Chola dominance across the Bay of Bengal maritime trade routes.
The Chudamani Vihara grant recorded in the Anaimangalam plates is significant because it documents Chola religious pluralism: a Hindu king patronising a Buddhist monastery established by a Southeast Asian ruler, reflecting the cosmopolitan character of Chola maritime diplomacy.
Copper plate inscriptions (Tamrashasana) were the standard Chola administrative instrument for recording royal grants of land, revenue, and immunities — serving simultaneously as legal documents, revenue records, and historical chronicles.

Connection to this news: The Anaimangalam plates are among the most important primary sources for understanding the Indo-Southeast Asian maritime corridor during the early medieval period. Their repatriation restores to India not just physical artefacts but key historical evidence of South India's global civilisational connections.

India's Cultural Diplomacy and Repatriation Framework

Cultural repatriation — the return of cultural objects to their country of origin — has emerged as a significant instrument of Indian foreign policy, particularly since 2014. India has positioned the recovery of heritage objects as an assertion of civilisational sovereignty and as a tool for strengthening bilateral relations.

The UNESCO 1970 Convention provides the multilateral normative framework; the UNIDROIT Convention on Stolen or Illegally Exported Cultural Objects (1995) offers additional civil-law remedies — India has signed but not ratified UNIDROIT.
India has successfully repatriated over 350 cultural objects since 2014 from countries including the United States, Australia, Canada, the United Kingdom, Singapore, and the Netherlands.
The Ministry of Culture and the ASI coordinate repatriation efforts; for diplomatic returns, the Ministry of External Affairs leads negotiation through cultural property agreements embedded in bilateral treaties or stand-alone memoranda of understanding.
The G20 New Delhi Declaration (2023) included language supporting the return of cultural property to countries of origin — reflecting India's effort to build multilateral consensus around repatriation norms.

Connection to this news: The return of the Anaimangalam plates — secured through diplomatic engagement rather than legal compulsion — illustrates the growing effectiveness of India's soft-power approach to heritage recovery and sets a precedent for engaging European institutions that hold pre-colonial-era Indian artefacts.

Key Facts & Data

The Anaimangalam Copper Plates: 24 sheets (21 large + 3 small), approximately 30 kg, bound by a bronze ring with the Chola royal seal.
Dating: Reign of Rajaraja Chola I (985–1014 CE); inscriptions engraved by Rajendra Chola I (r. 1012–1044 CE).
In Leiden University's possession since 1862 — 164 years before repatriation.
First Chola-period copper plates to be repatriated to India.
The plates record the Chudamani Vihara grant at Nagapattinam — established by the Srivijaya kingdom ruler Sri Mara Vijayotunga Varman.
India ratified the UNESCO 1970 Convention on January 24, 1977; enacted the Antiquities and Art Treasures Act, 1972 in alignment with the Convention.
India has repatriated over 350 cultural objects since 2014.
UNESCO 1970 Convention: adopted November 14, 1970; effective April 24, 1972; 147 states parties as of March 2025.
Brihadeeshwara Temple, Thanjavur (Rajaraja Chola I, c. 1010 CE): UNESCO World Heritage Site.