The pride of Karnataka, Kolar Gold Fields (KGF), is set to witness a revival of gold mining after a 24-year hiatus. The Central Government has taken the lead in this ambitious endeavor, aiming to extract gold from nine tailing dumps at KGF. These dumps, estimated to contain 33 million tonnes of waste, are believed to hold residual gold and rare metals like platinum, palladium, and rhodium, valued at Rs 25,000–30,000 crore. This initiative is expected to generate thousands of crores in revenue and create numerous job opportunities. Will KGF reclaim its past glory? How much revenue could the government earn? What is the current state of KGF, known as the world’s second-deepest gold mine? Read on for the full story.
Background and Current Developments
When mining operations ceased in 2001, the waste from gold extraction was piled into what are locally called "cyanide hills" due to their high cyanide content, a chemical used in gold processing. Approximately 33 million tonnes of such waste are spread across 13 tailing dumps covering 1,003.4 acres. These dumps contain small amounts of gold and rare metals, which were previously left unextracted due to low gold prices. However, with gold prices now soaring above Rs 9,000 per gram, the government estimates that extracting even 1 gram of gold per tonne of waste would be profitable.
A 2021 study by the Non-Ferrous Materials Technology Development Centre (NFTDC) under the Ministry of Mines revealed that at least 2 grams of gold per tonne can be extracted from these dumps. At a conservative estimate of Rs 6,000 per gram for gold and palladium, this could yield Rs 36,000 crore from 30 million tonnes of tailings. The presence of high-value rhodium could further increase this figure. To capitalize on this, the Central Government has initiated the auctioning of nine tailing dumps, with the process expected to conclude within 18–24 months.
Modern Technology and Environmental Considerations
Unlike the deep-shaft mining of the past, the revival will focus on surface-level extraction from tailing dumps using modern, cyanide-free technologies like thiosulfate leaching and glycine-based leaching to minimize environmental risks. Cyanide, if mixed with soil or water, poses significant dangers to humans and animals. The adoption of safer extraction methods reflects the government’s commitment to sustainable mining practices.
The Karnataka government approved the auction proposal in June 2024, following long-standing demands from KGF residents and workers’ forums, who have urged the revival of mining to address unemployment in the region. A letter to Prime Minister Narendra Modi highlighted that KGF has 27 gold-bearing lodes, of which only two have been mined, yielding over 900 tonnes of gold historically. Advocates argue that resuming mining could produce up to 100 tonnes of gold annually, significantly boosting India’s gold production, which currently stands at just 1.55 tonnes per year, with 80% coming from Hutti Gold Mines in Raichur.
Economic and Social Impact
India’s annual gold demand is approximately 744 tonnes, most of which is imported. Reviving KGF could reduce this dependency, strengthen the economy, and create thousands of jobs. The auction of tailing dumps is expected to generate Rs 36,000 crore in revenue, benefiting both the state and central governments. Additionally, the project could restore KGF’s past glory as the “Golden City of India,” revitalizing a region that has faced economic hardship since the mines closed in 2001.
The move has sparked optimism, with posts on X reflecting excitement about KGF’s reopening and its potential to yield 750 kg of gold annually. However, challenges remain, including environmental concerns and the need for modern infrastructure to ensure profitability. With state and central government alignment and advanced technology, KGF is poised for a historic comeback, blending its rich legacy with future-ready innovation.