Temples in India are resisting divulging their gold holdings - perhaps nearly half the amount held in Fort Knox - amid mistrust of the motives of authorities who are trying to cut a hefty import bill that is hurting the economy.
The Reserve Bank of India (RBI), which has already taken steps that have slowed to a trickle the incoming supplies that have exacerbated India's current account deficit (CAD), has sent letters to some of the country's richest temples asking for details of their gold.
It says the inquiries are simply data collection, but Hindu groups are up in arms.
"The gold stored in temples was contributed by devotees over thousands of years and we will not allow anyone to usurp it," said V Mohanan, secretary of the Hindu nationalist Vishwa Hindu Parishad organisation in Kerala state, in a statement.
Indians buy as much as 2.3 tonnes of gold, on average, every day - the weight of a small elephant - and what they don't give to the gods is mostly hoarded. Jewellery is handed down as heirlooms and stored away with bars and coins as a hedge against inflation or a source of quick funds in an emergency.
That is costing the economy dear. Gold imports totalled $54 billion in the year ending March 31, 2013, the biggest non-essential item shipped in from overseas and a major factor in swelling the current account deficit to a record in 2012/13.
Guruvayur temple, in Kerala, one of the most sacred in India and boasting a 33.5-metre (110-ft) gold-plated flagstaff, has already told the Reserve Bank of India (RBI) it won't divulge any details.
"The gold we have is mostly offered by the devotees. They would not like the details to be shared with anybody," said V M Gopala Menon, commissioner of the temple's administrative board.
The World Gold Council estimates there are about 2,000 tonnes of gold locked away in temples - worth about $84 billion at current prices - which Indian devotees have offered in the form of jewellery, bars, coins and even replicas of body parts, in the hope of winning favours from the gods or in