By Mohan Chandra Pargaien, Commission Member IUCN CEM, on 31 December 2025.
Mining landscapes often conjure images of barren, lifeless stretches – scars left behind after the relentless quest for energy. But in the heart of Telangana, the Singareni Collieries Company Limited (SCCL) is rewriting this narrative, proving that coal mining and ecological restoration can go hand in hand. Their journey is a compelling testament to how Nature-based Solutions (NbS) are breathing life back into what was once considered ecological dead zones.
The Challenge: Turning Spoil Into Soil
Opencast mining generates “overburden” – massive heaps of rock, shale, sandstone, and clay excavated to access coal seams. These spoil piles are unstable, leach heavy metals, and lack the topsoil crucial for plant growth. Since its inception in 1920, SCCL has operated across six districts, running 40 mines and handling about 4,100 lakh cubic metres of overburden every year. Recognising that mining and restoration must go hand in hand, SCCL has made ecological reclamation a core part of its operations.
Building the Foundation: The Science Behind Restoration
Restoration at Singareni starts long before the first sapling takes root. The transformation process is meticulous and engineering-driven:
- Regrading and Contouring: Overburden is reshaped to mimic natural landforms, preventing slope failures and stabilising the ground.
- Backfilling: Excavated pits are carefully refilled to reinforce the landscape.
- Erosion Control: A mix of grass sowing, mechanical interventions, and soil conservation measures protects the land from monsoon erosion while new plants take hold.
- Topsoil Management: Wherever possible, salvaged topsoil is spread over regraded surfaces, giving a head start to the process of ecological recovery.
Championing Native Biodiversity
Earlier reclamation efforts often relied on fast-growing, non-native species like Acacia holosericea and Prosopis juliflora. While these plants covered ground quickly, they did little for local wildlife and often created monocultures, undermining biodiversity. Learning from these mistakes, SCCL now adopts a ‘Native-First’ approach. Every year, 500 hectares of overburden are restored using robust seedlings of indigenous species, nurtured for over 18 months in company nurseries and planted only when they reach at least 1.5 metres in height – a strategy that has greatly improved survival rates.
The restoration team carefully selects species to create a multi-layered forest:
- The Stabilizers: Grasses like Saccharum munja, Cenchrus, Penisetum, Stylo (Hamata), and especially bamboo help bind the soil and resist erosion.
- The Pioneers: Hardy trees such as Neem, Kanuga (Pongamia), and Babul (Acacia nilotica) thrive in poor soils.
- The Giants: Bargad (Banyan), Peepal, and Hardwickia binata stand tall, providing shade and fruit for wildlife.
- The Soil Builders: Nitrogen-fixers like Albizzia and Glyciridia boost soil fertility naturally.
A Transformation in Just a Few Years
Within just 3 years, SCCL’s efforts are visible for all to see. Grey, dusty slopes turn into green hillsides, bringing with them three major benefits:
- Carbon Sequestration and Climate Resilience: These new forests act as carbon sinks, helping India meet its climate commitments by locking away atmospheric carbon in trees and soil.
- Hydrological and Microclimate Regulation: The restored vegetation regulates water runoff, promotes groundwater recharge, and improves local microclimates – people living nearby report less dust and cooler temperatures.
- Return of Wildlife: Birds and small mammals are making a comeback, turning once-isolated waste heaps into vibrant wildlife corridors.
Leading the Way for Sustainable Mining
SCCL’s approach goes far beyond environmental compliance. By marrying engineering know-how with ecological science, they show that mining can leave a positive legacy – a landscape that is productive and biodiverse long after the coal seams are exhausted. The Singareni model offers a practical roadmap for other mining regions, highlighting the value of investment in native nurseries, slope stabilisation, and ongoing biological monitoring.
Ultimately, the goal is to foster self-sustaining plant communities – a true return to nature, where the land thrives without human intervention. SCCL’s journey from spoil to soil is proof that, with commitment and creativity, even the toughest landscapes can be reborn.
What are your thoughts on adopting Nature-based Solutions on sustainable mining? Share your opinion in the comments below or email mcpargaien@gmail.com, and help spread awareness about sustainable mining.
The author is an Ex-Principal Chief Conservator of Forests, Telangana, and is presently working as an Advisor (Environment & Forests) at Singareni Collieries Ltd.