Key Highlights
- More than 110 megalithic burial structures were mapped across 45 hectares near Malampuzha Dam, Palakkad.
- The Kerala site includes cist graves, stone circles, urns, dolmens and dolmenoid cists built from granite and laterite.
- Excavations at Ratnagiri, Odisha, revealed ancient shrines, a criss‑cross brick stupa, a rectangular chaitya, three colossal Buddha heads and numerous monolithic votive stupas.
- Findings illuminate Kerala’s Iron‑Age societal customs and the transition of Buddhism from Mahayana to Vajrayana in eastern India.
- Both discoveries strengthen links between South‑Indian megalithic traditions and the spread of Buddhist art to Southeast Asia.
Detailed Insights
The Archaeological Survey of India’s field team, while conducting a systematic survey of the Malampuzha reservoir catch‑area, identified a dense cluster of more than 110 megalithic monuments spread over roughly 45 hectares. The monuments form island‑like mounds that are among the largest burial complexes recorded in the state of Kerala. Constructed primarily from unworked granite slabs and occasional laterite blocks, the structures belong to several typologies: cist graves (stone‑box coffins), circular stone arrangements, large earthen urns for cremated remains, classic dolmens with massive capstones, and dolmenoid cists, a regional variant featuring enclosed chambers.
These edifices, typical of the South‑Indian Iron Age (approximately 1000‑500 BCE), provide a rare opportunity to investigate mortuary rites, social hierarchy and ritual symbolism of early Dravidian communities. Comparative analysis with other prominent sites such as Brahmagiri (Karnataka) and Adichanallur (Tamil Nadu) suggests a pan‑South‑Indian mortuary culture that employed stone as a durable medium for commemorating the dead.
Concurrently, ASI’s ongoing excavation at Ratnagiri in Odisha—situated about 100 km north of Bhubaneswar—has yielded a trove of Buddhist material culture dating to the early medieval period (7th‑10th centuries CE). The discoveries include an assemblage of early shrine foundations, a series of small votive stupas, a distinctive brick stupa with an interlaced criss‑cross pattern, and an elaborate rectangular chaitya complex built from intricately laid brick and stone masonry.
Most striking are three colossal Buddha heads, alongside monolithic votive stupas carved with depictions of deities such as Tara, Chunda, Mañjuśrī, and Dhyāna‑Buddha. Inscriptions in Sanskrit, etched on seals and sculptures, corroborate the presence of a thriving monastic community. The predominance of greyware pottery further enriches the cultural portrait of the site.
These artifacts signal a pivotal phase in the diffusion of Vajrayana Buddhism from eastern India toward Southeast Asia, evidencing Ratnagiri’s role as a major scholastic and pilgrimage hub during the transition from Mahayana to the more esoteric Vajrayana tradition.
Key Concepts
- Megalithic burial: Large stone constructions used for interring the dead, characteristic of Neolithic to Iron‑Age societies in South Asia.
- Dolmen: A table‑like monument comprising upright stones supporting a massive horizontal slab, serving as a communal grave.
- Chaitya: A prayer hall or shrine, often rock‑cut or built of brick, central to Buddhist monastic architecture.
- Vajrayana Buddhism: An esoteric branch of Buddhism that emphasizes tantric rituals, iconography and the use of mandalas, flourishing in India between the 7th and 10th centuries CE.
- Greyware pottery: A type of coarse, gray‑toned ceramic frequently associated with early medieval Indian habitation layers.