(a) Examine the environmental challenges caused by the solid waste in metropolitan regions of India and discuss the efforts to…

India’s environmental geography is shaped by the interaction of urban metabolism, agricultural ecology, and maritime space. Metropolitan waste, millet systems, and island territories each reveal how resource use and territorial reach determine sustainability and security.

Metropolitan solid waste. Indian metropolitan regions produce heterogeneous waste, typically 50–60% biodegradable and 8–10% plastic, with the balance including paper, glass, metal and construction debris. Because metropolitan areas concentrate population, consumption and industry, even modest mismanagement has large environmental effects. The challenge is not merely volume but poor handling: open dumping generates leachate that contaminates groundwater, while anaerobic decomposition releases methane and causes landfill fires. Delhi’s Okhla and Ghazipur landfills have repeatedly caught fire, showing how unsegregated waste and poor closure create public-health and climate risks. The Solid Waste Management Rules, 2016 require source segregation, processing, biomining of old landfills and C&D waste processing, but implementation remains uneven. Many cities lack material-recovery facilities, biomining is patchy, and C&D waste is often dumped rather than recycled. Biomining can convert old organic waste into compost and biogas, reducing methane, while C&D processing can supply construction material and reduce landfill pressure. Yet positive models exist. Indore’s community-led segregation and processing have made it a seven-time cleanest city, while Surat’s landfill mining shows that old dumps can be treated as resources. Swachh Bharat Mission-Urban 2.0 strengthens this by shifting focus from cleanliness to waste processing, circularity and citizen participation. Source segregation also reduces the quantity entering landfills and improves recycling of plastics, paper and metals, making waste management more circular.

Millets as nutri-cereals. Millets are called nutri-cereals because they combine staple value with micronutrients: high protein (about 11%), calcium, iron, fiber, low glycemic index and gluten-free status, making them useful for diabetes, celiac and nutritionally vulnerable populations. They are climate-resilient because many are C4 crops with high water-use efficiency, drought tolerance, low input needs and short growing periods of 60–90 days, allowing cultivation in rainfed and marginal lands. This makes them suitable for heat-stressed, low-fertility regions where rice and wheat may be less reliable. Constraints include low yields, limited MSP procurement, weak processing and branding infrastructure, and changing dietary preferences toward wheat and rice. Opportunities are substantial: the UN International Year of Millets 2023 raised global visibility; state millet missions in Karnataka, Odisha and Madhya Pradesh are expanding area and value chains; and exports to Africa and the Middle East can diversify India’s food trade. Better milling, packaging, market access and farmer support can convert nutritional advantage into income and dietary change. Millet missions can also strengthen rural livelihoods and reduce dependence on water-intensive cereals.

Geostrategic significance of Indian islands. The Andaman and Nicobar Islands control the Six Degree Channel, a potential alternative to the Malacca Strait, and host INS Baaz and a tri-service command, enabling surveillance, rapid response and deterrence against the Chinese “String of Pearls”. Lakshadweep secures the Nine Degree Channel, with Minicoy’s proximity to the Maldives giving India a forward maritime presence in the Indian Ocean. Its waters also hold potential seabed resources. As India-China maritime competition intensifies, these islands help India project power, protect sea lanes and monitor activity beyond the first island chain. They also provide early warning, logistics and communication support for the Navy and Coast Guard, extending India’s ability to secure its maritime approaches. Their location near major shipping routes makes them important for monitoring commercial and military traffic.

In sum, metropolitan waste management, millet cultivation and island geostrategy are linked tests of Indian statecraft: sustainable cities require circular waste systems, food security requires climate-smart crops, and maritime power requires forward island bases. A coherent policy combining urban sustainability, agricultural resilience and maritime security is essential for India’s long-term development.