IIT Bhubaneswar Develops Satellite-Based Technology for Bauxite Exploration in Odisha

A research team at IIT Bhubaneswar has developed a satellite-driven, low-cost and eco-friendly technique to identify potential bauxite-bearing zones across Odisha, a breakthrough that could significantly improve mineral exploration in the state’s challenging landscapes. The work, led by Assistant Professor Ashim Sattar, was recognised at the 4th Odisha Mining and Infrastructure International Conference/Expo 2026 and has also been published in the Journal of Geochemical Exploration, making it a major regional-scale hyperspectral remote sensing study for bauxite prospecting in the state.

Bauxite is the primary ore for aluminium , a strategic metal that is critical for aerospace and electric mobility , apart from its wide use in renewable energy infrastructure , construction and packaging. As global aluminium demand rises, India has been focusing on strengthening domestic raw material security by improving exploration and resource identification at home. Odisha remains central to this strategy as it holds nearly 2.3 billion tonnes of bauxite reserves , accounting for over half of India’s total resources , but much of the mineral lies in the rugged Eastern Ghats terrain where traditional exploration is time-consuming and expensive , besides having higher environmental costs.

Using hyperspectral satellite remote sensing , the IIT Bhubaneswar team mapped probable bauxite depositional zones at a regional scale across Koraput and Rayagada districts . Unlike conventional satellite imagery, hyperspectral data captures hundreds of narrow wavelength bands, allowing researchers to detect minerals through the spectral signature of earth materials —a distinctive electromagnetic response that helps identify bauxite-related minerals more precisely in early-stage exploration.

Importantly, the research did not rely only on satellite interpretation. The method integrates hyperspectral datasets with field validation and geochemical assessment , along with petrographic tests and laboratory spectral studies, strengthening accuracy and reducing the risk of misidentifying other weathered formations as bauxite zones. Experts said this multi-layered approach can help narrow down targets for ground surveys, reducing unnecessary drilling and disturbance.

The findings are expected to support the mining industry and policymakers in identifying high-potential zones, optimising exploration investments, and minimising environmental impacts. Researchers and experts also see the technique as an important step towards next-generation mineral mapping and sustainable resource management , with potential applications beyond bauxite and beyond Odisha’s mineral belt.