By D Madhusudana Rao
India’s pursuit of economic growth is increasingly constrained by three interlinked pressures: rising energy imports, rural income stagnation, and climate vulnerability. Policymakers often address these challenges in isolation. Yet, a decentralised and proven solution—biogas—offers a rare opportunity to tackle all three together. LPG Dependence and the Import Burden India’s transition from firewood to LPG has been a public health and environmental success. However, this transition has also deepened dependence on imports. The country spends close to Rs 1 lakh crore annually on LPG imports, exposing the economy to global price volatility and foreign exchange stress. While LPG will remain essential, particularly in urban India, rural areas require a locally produced, renewable complement. Biogas provides exactly that.
Waste as an Energy Resource A standard 50 kg of cattle dung or 35 kg of pig manure per day About 100 litres of water Less than 30 minutes of daily labour In return, it delivers: Cooking gas equivalent to two LPG cylinders per month 30–36 tonnes of nutrient-rich organic manure annually This transforms agricultural waste into energy, fertiliser, and income— without recurring fuel costs.
Macroeconomic Gains from Decentralisation Scaling
50,000 biogas plants can: Replace 12 lakh LPG cylinders per month Generate cooking fuel worth Rs 120 crore annually Reduce import dependence and subsidy pressure The manure by-product has even greater value. At a conservative Rs 5 per kg, a single plant produces manure worth Rs 1.8 lakh per year. At scale, this translates to nearly Rs 900 crore annually, while reducing reliance on imported chemical fertilisers. Boost to Farm Productivity and Soil Health Biogas slurry is pathogen-free, nutrient-dense, and ideal for organic farming. Its use improves soil structure, enhances water retention, and raises crop yields. With global demand for organic produce rising, biogas-linked agriculture can improve farmer incomes and export competitiveness. Employment Generation at the Grassroots Biogas enables decentralised employment: One trained youth can manage 10 plants
50,000 plants can create 10,000–15,000 rural jobs Additional income arises from packaging and selling organic manure to urban households, institutions, and peri-urban farmers. Construction and maintenance activities generate over 22 lakh man-days annually, injecting close to Rs 90 crore into rural wages. Climate Action with Economic Returns Unmanaged animal waste releases methane—a greenhouse gas far more potent than carbon dioxide. Biogas systems capture this methane, improving air quality and public health. These emission reductions qualify for carbon credits, which are increasingly purchased by global corporations and governments. With proper aggregation, India can convert rural biogas deployment into a steady climate-finance inflow.
Technology No Longer the Bottleneck: Earlier biogas programmes failed due to poor design and maintenance. Today’s flow-type biogas plants, based on advanced international models, are durable, quick to install, and low-maintenance. Successful deployments across multiple states have demonstrated long-term viability. Policy Imperatives A scalable model already exists: Capital subsidy support NGO-led construction and maintenance Bulk deployment with performance accountability Integration with carbon markets and CSR funding What is required now is policy prioritisation, not reinvention.
Conclusion Biogas is not a welfare scheme; it is productive infrastructure. It reduces imports, strengthens rural economies, improves public health, and delivers measurable climate benefits. In an era of fiscal constraints and climate urgency, India cannot afford to overlook solutions that offer such high returns on investment. Biogas deserves a central place in the country’s energy and rural development strategy.
(The writer is a Chartered Accountant turned social reform advocate. Since retiring from business in 2007 he has dedicated himself to heath, education and rural development and for two decades engaged with the rural communities of Meghalaya, especially to reduce the use of firewood as fuel. His current mission is to promote low-cost biogas solutions as a pathway to clean cooking and reduced drudgery.)
