Coal is mainly found in the eastern and central parts of India, and these regions contain some of the largest coal deposits in Asia. The major coalfields include the Damodar Valley, covering Jharia, Raniganj, and Bardhaman in Jharkhand and West Bengal. Other important coal regions are Korba, Raigarh, and Talcher in Chhattisgarh and Odisha, and Singrauli located along the Madhya Pradesh–Uttar Pradesh border. Additional coalfields include Wardha Valley (Maharashtra), Godavari Valley (Telangana & Andhra Pradesh), and Neyveli in Tamil Nadu, which is known for lignite coal.
Map Tip: It is helpful to mark Jharia, Raniganj, Korba, Singrauli, Talcher, and Neyveli when preparing maps for exams.
Coal is the primary fuel used in thermal power plants, generating over 70% of India’s electricity. It is an essential raw material in the steel industry, where coking coal is used in blast furnaces in places such as Bokaro, Durgapur, and Jamshedpur. Coal is also used in cement factories, brick kilns, boilers, and even for domestic heating in colder regions.
Coal mining and usage cause a number of serious issues such as air pollution due to the emission of CO₂, SO₂, and NOx, which contribute to acid rain and climate change. Regions like Singrauli face extremely high pollution levels from mining and thermal power activities. Coalfields such as Jharia experience underground fires and land subsidence, causing displacement and releasing toxic fumes. Large-scale deforestation, soil removal, and loss of biodiversity occur due to open-cast mining. Local communities often suffer from respiratory diseases, social displacement, and poor rehabilitation. The distribution of coal is uneven, leading to heavy transport costs. Indian coal has high ash content and low calorific value, creating disposal problems. Illegal mining continues to be unsafe and leads to major revenue losses.
Petroleum was first discovered at Digboi in Assam, which is Asia’s oldest continuously producing oil well. Major onshore fields include Digboi, Naharkatiya, Lakwa (Assam) and Ankleshwar, Mehsana, and Gandhar (Gujarat). The major offshore reserves are located at Mumbai High, along with the Krishna-Godavari (KG) Basin and Cauvery Basin on the east coast. Recent explorations continue to expand reserves in the Bay of Bengal region.
Map Tip: Mark Digboi, Ankleshwar, Mumbai High, and KG Basin while preparing maps.
Petroleum is widely used as a transport fuel in the form of petrol, diesel, and aviation turbine fuel (ATF). It is the backbone of the petrochemical industry, used to manufacture plastics, fertilizers, synthetic fibres, detergents, lubricants, and rubber. It serves as industrial fuel, a raw material for chemicals, and a source of LPG for household cooking.
India has heavy import dependence for petroleum, which affects energy security and the national economy. Oil spills from tankers and rigs severely damage marine ecosystems and fisheries. Burning petroleum releases greenhouse gases, worsening pollution and climate change. Oil fields cause displacement and environmental disruption, particularly in Assam. Frequent price fluctuations affect daily life and industrial costs. Exploration involves risks of fires, blowouts, and accidents, especially in deep-sea areas. Many reserves are declining, requiring costly extraction technologies.
Natural gas occurs along with petroleum as well as in separate deposits. Major areas include the western offshore region (Mumbai High), Gujarat’s Cambay Basin, the Krishna-Godavari Basin, and Assam. Many urban regions such as Delhi, Mumbai, Pune, Bengaluru, and Ahmedabad have city gas distribution networks.
Natural gas is used for electricity generation in gas-based power plants. It is a key raw material for the fertilizer industry, especially for producing urea. It is used as CNG (Compressed Natural Gas) for transport, especially in Delhi's public buses and taxis. It is used as a clean cooking fuel through piped natural gas, and as a raw material for petrochemicals.
India’s reserves are limited, increasing reliance on imported LNG. Building and maintaining pipeline networks is difficult and expensive. There is a risk of leaks and explosions if gas is mishandled. Offshore drilling threatens marine ecosystems. Prices fluctuate due to global market instability. Many fields are aging, reducing production levels.
Electricity is produced from multiple sources such as thermal (coal-based), hydroelectric, nuclear, and renewable sources. Thermal power plants such as Vindhyachal, Korba, and Singrauli contribute the largest share. Hydroelectric power is produced at Bhakra Nangal, Tehri, Hirakud, and Sardar Sarovar. Nuclear power stations such as Tarapur, Rawatbhata, and Kudankulam supply base-load electricity. Renewable energy, including solar and wind, is rapidly growing in Gujarat, Rajasthan, and Tamil Nadu.
Electricity is distributed via the National Grid, connecting Northern, Eastern, Western, Southern, and North-Eastern power regions. Major generation occurs in Maharashtra, Gujarat, Tamil Nadu, Uttar Pradesh, and West Bengal. Distribution is managed by State Electricity Boards (SEBs) and private companies. Rural electrification programs like Saubhagya have expanded access, though supply quality varies.
Electricity is used for domestic needs, industrial production, agricultural irrigation, and services like hospitals, schools, and railways.
Heavy coal dependence leads to pollution and greenhouse emissions. There are large transmission and distribution losses due to theft and poor infrastructure. Regional imbalances cause frequent power cuts and load shedding. Large dams cause displacement, ecological damage, and high social costs. High pricing and subsidies affect financial sustainability. Aging grid systems need modernization. Nuclear power carries risks of accidents and waste disposal.
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