Earlier, in 2011, as many as 522 silver ingots worth nearly Rs 100 crore were recovered from a walled-up room. The Mahant was arrested and served some time in jail. The discovery of such a hoard should have culminated in a detailed survey of any further hoards, buried or secreted in some place, said Anil Kumar Dhir of INTACH who has drawn attention of the authorities raising the issue of hidden treasures at these age-old mutts.