Inside India’s Secret Temple Vaults Where $22 Billion In Ancient Treasure Remains Hidden

Deep beneath the floorboards of the Sree Padmanabhaswamy Temple in Thiruvananthapuram, India, lies a hoard of unimaginable historical and monetary value. For roughly 150 years, the temple’s underground vaults remained sealed, hiding away an immense collection that includes an 18-foot gold chain, a diamond-encrusted golden idol of Vishnu, and a 36-kilogram gold veil. When the Indian Supreme Court finally mandated an inspection in 2011, the contents—which included ancient Roman coins and currency from Napoleon’s France—were valued at an estimated $22 billion, instantly marking the site as one of the most affluent religious institutions on the planet.

A Legacy of Devotion and Wealth

The temple is dedicated to Padmanabhaswamy, a form of the Hindu deity Vishnu. The current architectural complex was largely shaped by the Travancore ruler Marthanda Varma, who oversaw a major reconstruction and consecrated a new idol in 1739. For generations, the Travancore royal family acted as stewards of the temple, viewing themselves as humble servants of the deity. Consequently, over several centuries, significant portions of the royal treasury were transferred into the temple’s secure underground chambers.

The existence of these riches was an open secret among the local population, but concerns regarding the security and management of the site eventually prompted action. T.P. Sundararajan, a former police officer living near the temple’s west gate, filed a lawsuit in 2009 demanding a government audit and improved oversight. Following a series of court battles, the Supreme Court of India ordered an inventory of the six vaults, labeled A through F.

Inventorying a Fortune

Beginning in June 2011, a court-appointed team spent six days cataloging the contents of the vaults under high security. The haul included pure gold ropes, ceremonial crowns, and a vast array of coins from the Roman Empire and Venice, as well as gold pieces from the Dutch East India Company. The sheer scale of the discovery highlighted a tradition where kings would be weighed against gold, which was then donated to the sanctuary. Experts note that the $22 billion estimate is likely conservative, as it reflects the raw weight of the gold rather than the significantly higher numismatic or historical value of the individual artifacts.

Sundararajan, the man whose persistence led to the inspection, passed away in July 2011, shortly after the inventory concluded. In the years that followed, the legal struggle over who should control the temple continued, eventually resulting in a 2020 Supreme Court decision that restored the Travancore royal family’s administrative rights over the temple.

The Enigma of Vault B

Despite the exhaustive audit, one chamber remains strictly off-limits: Vault B. Adorned with carvings of cobras, the vault has inspired numerous myths, ranging from legends of serpents guarding the riches to folklore suggesting an underground tunnel connects the chamber to the sea. Gouri Parvathi Bayi, representing the royal family, has publicly stated that the vault will remain closed, citing religious advice from temple priests and the importance of maintaining the deity’s secrets.

However, archival records suggest a more complex reality. A 2014 report by former chief auditor Vinod Rai indicated that Vault B had been accessed several times in the past, including in 1990 and 2002. While the royal family disputes these records, claiming only the outer room was entered rather than the inner sanctum, the status of the main chamber remains a subject of ongoing debate. As of late 2025, discussions regarding its potential opening have resurfaced, keeping the mystery surrounding the temple’s final hidden cache alive.