Why Correct: Kodasalli Dam on the Kali River in Karnataka primarily serves hydroelectric power generation with minimal irrigation purpose.
Distractor Analysis: Krishna Raja Sagara Dam on the Kaveri River provides extensive irrigation to Mysore and Mandya regions. Hemavathi Dam on the Hemavathi River irrigates Hassan and Mandya districts. Kabini Dam on the Kabini River supplies irrigation water to parts of Mysore and Chamarajanagar districts.
Takeaway: The Krishna Raja Sagara Dam was built by Sir M. Visvesvaraya and inaugurated in 1931, making it one of South India's oldest major irrigation dams.

Why Correct: Muppandal Wind Farm in Kanyakumari district, Tamil Nadu has 1500MW capacity, making it India's largest wind farm.
Distractor Analysis: Andhra Pradesh has wind farms in Anantapur and Kurnool districts. Maharashtra has wind farms in Satara and Sangli districts. Gujarat has wind farms in Kutch and Jamnagar districts.
Takeaway: India's second largest wind farm is Jaisalmer Wind Park in Rajasthan with 1064MW capacity.

Why Correct: The Kurnool-Kudapa Canal originates from the Tungabhadra River at the Sunkesula barrage near Kurnool, Andhra Pradesh, and supplies irrigation water to the Kurnool and Kadapa districts.
Distractor Analysis: The Cauvery River flows through Karnataka and Tamil Nadu, not Andhra Pradesh. The Krishna River has major canals like the Krishna Delta System and Nagarjuna Sagar canals. The Tapti River flows through central India in Madhya Pradesh, Maharashtra, and Gujarat.
Takeaway: The Tungabhadra River is a major tributary of the Krishna River, forming the border between Karnataka and Andhra Pradesh, with important irrigation projects like the Tungabhadra Dam and associated canal systems.

Why Correct: The Sharavati Hydroelectric Project is located in Karnataka, harnessing the Sharavati River in Shimoga district, with power generation linked to Jog Falls.
Distractor Analysis: Kerala hosts major hydroelectric projects like Idukki and Sabarigiri. Maharashtra has the Koyna and Bhira projects. Madhya Pradesh has projects on the Narmada River such as Indira Sagar.
Takeaway: Jog Falls, formed by the Sharavati River, is one of India's highest waterfalls and a significant geographical landmark in Karnataka.

Why Correct: Chhattisgarh leads India in tin production, with major deposits in the Bastar district, contributing the largest share of the country's tin ore (cassiterite).
Distractor Analysis: Rajasthan produces tin from areas like Degana in Nagaur, but it is not the highest producer. Odisha is a top producer of minerals like chromite and bauxite. Jharkhand leads in minerals such as copper and uranium.
Takeaway: Tin ore is also found in minor quantities in Jharkhand's Singhbhum belt, but Chhattisgarh's Bastar region is the primary source for India's tin production.

Why Correct: Kakrapar Atomic Power Station is located near Surat in Gujarat, about 80 km from Surat city.
Distractor Analysis: Kota in Rajasthan hosts the Rajasthan Atomic Power Station. Kalpakkam in Tamil Nadu hosts the Madras Atomic Power Station. Mumbai hosts the Bhabha Atomic Research Centre headquarters.
Takeaway: India's first pressurized heavy water reactor was built at Kakrapar, and it houses both KAPS-1 and KAPS-2 reactors.

Why Correct: Somasila Dam is built across the Penna River in Nellore district of Andhra Pradesh, serving as a major irrigation and drinking water project.
Distractor Analysis: Madhya Pradesh has major dams like Indira Sagar and Bargi, Karnataka has Krishna Raja Sagara and Almatti, and Maharashtra has Koyna and Jayakwadi dams.
Takeaway: The Penna River flows through Karnataka and Andhra Pradesh, with major projects including Somasila Dam in Andhra Pradesh and Mylavaram Dam in Karnataka.

Why Correct: Kiru Hydroelectric Project is located on the Chenab River in the Kishtwar district of Jammu and Kashmir (now part of the Union Territory of Jammu and Kashmir).
Distractor Analysis: Telangana has hydro projects on the Godavari and Krishna rivers. Kerala has hydro projects on the Periyar and Chaliyar rivers. Andhra Pradesh has hydro projects on the Godavari, Krishna, and Penna rivers.
Takeaway: The Chenab River basin in Jammu and Kashmir hosts several major hydroelectric projects including Dulhasti, Baglihar, and Ratle, making it a significant power generation region.

Why Correct: The Damodar valley region in Jharkhand and West Bengal contains approximately 80% of India's coal reserves, including major coalfields like Jharia, Raniganj, and Bokaro.
Distractor Analysis: Son valley in Madhya Pradesh has some coal deposits but not the majority. Mahanadi valley in Odisha contains significant coal reserves but less than Damodar valley. Godavari valley in Telangana and Maharashtra has minor coal deposits.
Takeaway: Jharkhand alone accounts for about 30% of India's coal reserves, with Jharia coalfield being the largest and most important coking coal reserve.

Why Correct: Odisha accounts for approximately 44% of India's manganese ore production and holds the largest reserves, primarily in districts like Keonjhar, Sundargarh, and Koraput.
Distractor Analysis: Bihar has minor manganese deposits in the Singhbhum district. Karnataka ranks second in production with reserves in the Bellary-Hospet region. Rajasthan has negligible manganese production, with small deposits in the Banswara and Udaipur districts.
Takeaway: Madhya Pradesh and Maharashtra are other significant manganese-producing states, while Goa was historically important but now has depleted reserves.

Why Correct: Digboi in Assam holds India's first commercially successful oil discovery in 1866, making it Asia's oldest continuously producing oilfield.
Distractor Analysis: Surma Valley in Assam contains natural gas fields. Rudrasagar is an oil field discovered later in Assam. Nahorkatia is another oil field in Assam discovered in the 1950s.
Takeaway: Digboi refinery, established in 1901, is India's oldest operating refinery and is now part of Indian Oil Corporation's Assam Oil Division.

Why Correct: Tamil Nadu leads India in wind power capacity with over 10,000 MW installed, leveraging its strong coastal winds and early policy support.
Distractor Analysis: Gujarat ranks second with significant wind capacity, Maharashtra holds third position with substantial installations, and Karnataka has been rapidly expanding but still trails Tamil Nadu.
Takeaway: India's total wind power capacity exceeds 45,000 MW, with Tamil Nadu, Gujarat, Maharashtra, and Karnataka accounting for over 80% of national capacity.

Why Correct: Polavaram Irrigation Project is a multi-purpose dam project constructed across the Godavari River near Polavaram village in Andhra Pradesh's West Godavari district.
Distractor Analysis: Cauvery River flows through Karnataka and Tamil Nadu with major projects like Krishna Raja Sagara. Penner River originates in Karnataka and flows through Andhra Pradesh but has no Polavaram association. Krishna River hosts projects like Nagarjuna Sagar and Srisailam in Andhra Pradesh and Telangana.
Takeaway: Polavaram was declared a national project in 2014 and will provide irrigation to over 7 lakh acres while generating 960 MW of hydroelectric power upon completion.

Why Correct: The Mullaperiyar Dam, located in Idukki district of Kerala, is operated by Tamil Nadu under an 1886 lease agreement, causing long-standing water-sharing disputes between the two states.
Distractor Analysis: Maharashtra and Gujarat dispute the Sardar Sarovar Dam on the Narmada River. Odisha and Andhra Pradesh have conflicts over the Polavaram Dam on the Godavari River. Gujarat and Rajasthan share the Narmada River but their main dam dispute involves the Sardar Sarovar with Madhya Pradesh.
Takeaway: The Kaveri River water dispute involves Tamil Nadu, Karnataka, Kerala, and Puducherry, while the Krishna River dispute involves Maharashtra, Karnataka, Telangana, and Andhra Pradesh.

Why Correct: The Gulf of Khambhat and Gulf of Kutch in Gujarat have the highest tidal ranges in India (up to 11 meters), making Gujarat coast the most suitable location for tidal energy generation.
Distractor Analysis: Malabar coast (Kerala) has moderate tidal ranges but lower potential than Gujarat. Konkan coast (Maharashtra-Goa) has relatively low tidal ranges. Coromandel coast (Tamil Nadu-Andhra) experiences low tidal amplitudes unsuitable for large-scale tidal power.
Takeaway: India's first tidal power demonstration project was established at Durgaduani Creek in Sundarbans, West Bengal, with a 3.75 MW capacity.

Why Correct: Rajasthan contains the largest area of wasteland in India, with over 20% of the country's total wasteland concentrated in its arid and semi-arid regions including the Thar Desert.
Distractor Analysis: Uttar Pradesh has extensive agricultural plains with relatively low wasteland percentage. Madhya Pradesh has significant forest cover and agricultural land. Gujarat has substantial wasteland areas but less total extent than Rajasthan.
Takeaway: According to the Wasteland Atlas of India, Rajasthan consistently ranks first in wasteland area, followed by Gujarat and Madhya Pradesh, with desertification being a major concern in northwestern states.

Why Correct: The Kudankulam Nuclear Power Plant is located in the Tirunelveli district of Tamil Nadu, on the coast of the Gulf of Mannar.
Distractor Analysis: Karnataka hosts the Kaiga Nuclear Power Plant in Uttara Kannada district. Kerala has no operational nuclear power plants. Andhra Pradesh hosts the proposed Kovvada Nuclear Power Plant in Srikakulam district.
Takeaway: Kudankulam is India's largest nuclear power station, built with Russian collaboration, and its first unit achieved criticality in 2013 and commercial operation in 2014.

Why Correct: Majhgawan near Panna in Madhya Pradesh hosts India's only significant diamond mine, operational since the 1960s and producing industrial and gem-quality diamonds.
Distractor Analysis: Uttar Pradesh contains no major diamond mines, though it has other mineral resources. Karnataka has gold mines at Kolar and Hutti, but no diamond production. Gujarat has lignite and bauxite deposits, but no diamond mines.
Takeaway: India's diamond mining is concentrated in Madhya Pradesh, while Andhra Pradesh (Golconda historically) and Chhattisgarh have smaller occurrences.

Why Correct: Jharkhand produces over 60% of India's mica, primarily from the Koderma-Giridih belt, which is the world's largest mica-producing region.
Distractor Analysis: Bihar historically had mica mining, but most production now falls within Jharkhand after the state's bifurcation in 2000. Chhattisgarh has mica deposits in Bastar, but contributes less than 10% of national output. Odisha has mica in Mayurbhanj and Keonjhar districts, accounting for about 15% of production.
Takeaway: India dominates global mica production, with Andhra Pradesh (Nellore) being the second-largest producer after Jharkhand.

Why Correct: Aeolian setting refers to wind-blown sand deposition, which is not a significant issue in the Indira Gandhi Canal command area located in the Thar Desert region of Rajasthan.
Distractor Analysis: Increase in soil salinity occurs due to capillary action bringing salts to the surface in arid irrigated areas. Progressive water logging results from excessive irrigation without proper drainage in the flat terrain. Decline in water supply happens because the canal depends on Himalayan rivers (Sutlej-Beas) whose flows are decreasing due to climate change and upstream usage.
Takeaway: The Indira Gandhi Canal (formerly Rajasthan Canal) is the longest canal in India at 649 km, irrigating over 2 million hectares in the Thar Desert through the Rajasthan Feeder and Main Canal system.

Why Correct: Jharkhand holds India's largest coal reserves, primarily in the Damodar Valley coalfields including the Jharia, Bokaro, and Ramgarh basins.
Distractor Analysis: Odisha (formerly Orissa) ranks third in coal reserves with major deposits in Talcher and Ib Valley. Chhattisgarh ranks second in reserves with significant deposits in Korba and Mand-Raigarh coalfields. West Bengal has smaller reserves concentrated in Raniganj coalfield, which was historically important but now depleted.
Takeaway: India's coal reserves follow a clear hierarchy: Jharkhand (largest reserves) > Chhattisgarh > Odisha > Madhya Pradesh > West Bengal.

Why Correct: Chhattisgarh is India's largest coal-producing state, accounting for approximately 25-30% of national production from mines in Korba, Raigarh, and Surguja districts.
Distractor Analysis: Jharkhand ranks second in production despite having the largest reserves, with significant output from Jharia and Bokaro coalfields. Odisha ranks third in production with major mines in Talcher and Ib Valley. Andhra Pradesh has minor coal production compared to the top three states, with limited reserves in Godavari Valley.
Takeaway: While Jharkhand has the largest reserves, Chhattisgarh leads in production due to newer, more productive mines and better infrastructure for extraction and transportation.

Why Correct: Bituminous coal constitutes over 80% of India's total coal reserves and accounts for the majority of coal production, primarily from the Gondwana coalfields.
Distractor Analysis: Anthracite is the highest grade coal with over 86% carbon content but represents less than 1% of India's reserves. Lignite accounts for about 7% of reserves, mainly in Tamil Nadu and Rajasthan. Peat is the earliest stage of coal formation and has minimal commercial significance in India.
Takeaway: India ranks fourth in global coal reserves with about 344 billion tonnes, with Jharkhand, Odisha, and Chhattisgarh holding the largest deposits.

Why Correct: Bauxite ore is processed to extract alumina (Al2O3) through the Bayer process, which is then electrolyzed to produce pure aluminium metal.
Distractor Analysis: Aluminium is the final metal product obtained after electrolysis of alumina. Biotite mica is a silicate mineral found in igneous and metamorphic rocks, not extracted from bauxite. Chalcopyrite is a copper iron sulfide mineral that serves as the primary ore for copper extraction.
Takeaway: Bauxite is the world's main source of aluminium, with India having significant reserves in Odisha, Gujarat, Jharkhand, and Maharashtra.

Why Correct: Koyna Hydroelectric Project in Maharashtra's Satara district has the largest installed capacity among these options at 1,960 MW, developed in four stages since 1962.
Distractor Analysis: Koyna's 1,960 MW capacity makes it India's largest completed hydroelectric project. Bhakra-Nangal has 1,325 MW capacity primarily for irrigation with power generation. Sabari Giri in Kerala has 300 MW capacity. Kundah in Tamil Nadu has 425 MW capacity across six stages.
Takeaway: Tehri Dam in Uttarakhand currently holds India's largest hydroelectric capacity at 2,400 MW, while Koyna remains the largest in Maharashtra.

Why Correct: The Bailadila Hills in the Dantewada district of Chhattisgarh contain one of India's largest and highest-grade hematite iron ore deposits, with major mines operated by NMDC.
Distractor Analysis: Aluminium production requires bauxite as the primary ore, mined extensively in Odisha, Gujarat, and Jharkhand. Bauxite is the principal ore of aluminium, with major Indian deposits in Odisha, Andhra Pradesh, and Gujarat. Mica production in India is concentrated in Jharkhand, Andhra Pradesh, and Rajasthan, particularly the Koderma-Giridih belt.
Takeaway: Other major iron ore producing regions in India include the Singhbhum belt in Jharkhand, the Bellary-Hospet region in Karnataka, and the Goa mining belt.

Why Correct: Bauxite is the primary ore of aluminium, containing aluminium oxides that undergo the Bayer process and Hall-Héroult electrolysis to extract pure aluminium.
Distractor Analysis: Bronze is an alloy of copper and tin, typically produced from copper and tin ores. Copper is extracted from ores like chalcopyrite, malachite, and bornite. Mica is a silicate mineral group mined directly as sheet minerals for electrical insulation and cosmetics.
Takeaway: India's major bauxite reserves are in Odisha, Gujarat, Jharkhand, Maharashtra, and Madhya Pradesh, with Odisha having the largest deposits.

Why Correct: Bhakra Dam is built on the Sutlej River, creating the Gobind Sagar reservoir in Himachal Pradesh.
Distractor Analysis: Jhelum flows through Jammu & Kashmir and Pakistan. Beas is a tributary of the Sutlej but has separate projects like Pong Dam. Indus flows through Ladakh and Pakistan, with major projects like Tarbela Dam.
Takeaway: Bhakra Nangal is India's largest multipurpose river valley project, providing irrigation to Punjab, Haryana, and Rajasthan.

Why Correct: Nagarjunasagar Dam is constructed on the Krishna River, located on the border between Andhra Pradesh and Telangana.
Distractor Analysis: Cauvery flows through Karnataka and Tamil Nadu with projects like Mettur Dam. Tungabhadra is a Krishna tributary with its own dam in Karnataka. Sone is a Ganga tributary in Madhya Pradesh and Bihar with projects like Rihand Dam.
Takeaway: Nagarjunasagar is one of India's earliest and largest masonry dams, providing irrigation to the Telangana and Rayalaseema regions.

Why Correct: Lignite is a low-grade brown coal with 40–60% carbon content, forming the lowest rank of coal between peat and bituminous coal.
Distractor Analysis: Iron ore refers to rocks/minerals like hematite and magnetite used for iron extraction. Copper is a metallic element and mineral. Limestone is a sedimentary rock composed primarily of calcium carbonate.
Takeaway: India's major lignite deposits occur in Tamil Nadu (Neyveli), Rajasthan, and Gujarat, with Neyveli Lignite Corporation being Asia's largest lignite producer.

Why Correct: The Brahmaputra basin has India's highest hydroelectric potential due to its steep gradient, high discharge volume, and favorable topography in the Eastern Himalayas.
Distractor Analysis: The Ganga basin has substantial but lower hydroelectric potential due to gentler gradients in the plains. East flowing rivers of South India like Godavari and Krishna have moderate potential. West flowing rivers of South India like Periyar and Sharavati have good potential but much lower than Himalayan rivers.
Takeaway: India's hydroelectric potential is concentrated in the Himalayan region (Brahmaputra, Indus, Ganga basins) which accounts for about 80% of the total potential, while peninsular rivers contribute the remaining 20%.

Why Correct: Digboi in Assam, discovered in 1889 and operational since 1901, is India's oldest continuously producing oilfield, often called the 'Oil City of Assam'.
Distractor Analysis: Moran is another oilfield in Assam discovered later. Bombay High, discovered in 1974, is India's largest offshore oilfield in the Arabian Sea. Arikleswar is a misspelling of Ankleshwar, a major onshore oilfield in Gujarat discovered in 1960.
Takeaway: Naharkatiya in Assam, discovered in 1953, was India's first major oil discovery after independence, while ONGC discovered Mumbai High in 1974.

Why Correct: Nagarjunsagar Dam spans the Krishna River in Telangana's Nalgonda district, near Nagarjunakonda island.
Distractor Analysis: Mahi River flows through Madhya Pradesh, Rajasthan, and Gujarat with major dams like Mahi Bajaj Sagar. Tapti River flows through Madhya Pradesh, Maharashtra, and Gujarat with dams like Ukai. Krishna River flows through Maharashtra, Karnataka, Telangana, and Andhra Pradesh, but the Nagarjunsagar Project is specifically in Telangana, not Karnataka.
Takeaway: Nagarjunsagar is the tallest masonry dam in the world and creates one of India's largest reservoirs, primarily serving irrigation in Telangana and Andhra Pradesh.

Why Correct: Tarapur Atomic Power Station (TAPS) in Maharashtra, commissioned in 1969, was India's first nuclear power plant built with US assistance under the 1963 India-US nuclear cooperation agreement.
Distractor Analysis: Trombay houses the Bhabha Atomic Research Centre (BARC), India's premier nuclear research facility, but not a commercial nuclear power station. Kalpakkam in Tamil Nadu houses the Madras Atomic Power Station (MAPS), commissioned in 1983-84. Narora in Uttar Pradesh houses the Narora Atomic Power Station (NAPS), commissioned in 1989-91.
Takeaway: Tarapur initially used boiling water reactors (BWRs) supplied by General Electric, and it remains one of India's largest nuclear power stations with multiple units.

Why Correct: Andhra Pradesh holds nearly 98% of India's barite reserves, primarily in the Mangampet deposit in Cuddapah district.
Distractor Analysis: Rajasthan has significant reserves of zinc, lead, and copper but minimal barite. Bihar has some mica and limestone deposits but negligible barite. Madhya Pradesh is rich in diamonds, copper, and coal but not barite.
Takeaway: Mangampet in Andhra Pradesh is the single largest barite deposit in the world, accounting for India's dominant global position in this mineral.

Why Correct: Pong Dam (also called Beas Dam) stands on the Beas River in Himachal Pradesh, creating the Maharana Pratap Sagar reservoir.
Distractor Analysis: The Narmada River hosts the Sardar Sarovar Dam, the Sone River has the Indrapuri Barrage, and the Ravi River supports the Ranjit Sagar Dam.
Takeaway: Maharana Pratap Sagar is one of India's largest man-made lakes and serves irrigation, power generation, and flood control purposes.

Why Correct: Monazite sands containing rare earth elements and thorium are primarily found along the Malabar Coast of Kerala, particularly in the Chavara and Manavalakurichi regions.
Distractor Analysis: Ratnagiri Coast in Maharashtra has some mineral sands but not significant monazite deposits, Coromandel Coast in Tamil Nadu-Andhra has ilmenite and garnet sands, and Chandipur Coast in Odisha is known for its unique tidal phenomenon but not for monazite.
Takeaway: India holds about 70% of the world's monazite reserves, with Kerala's coastal sands being the primary source for thorium used in nuclear programs.

Why Correct: Ores are naturally occurring minerals or mineral aggregates from which metals can be extracted economically. Every ore is a mineral, but not every mineral qualifies as an ore.
Distractor Analysis: A mineral can be an ore if it contains economically extractable metal. An ore must be a mineral by definition. Most minerals lack sufficient metal content or economic viability for extraction.
Takeaway: Minerals are naturally occurring inorganic solids with definite chemical composition and crystalline structure, while ores are minerals that contain metal in sufficient quantity and quality for profitable extraction.

Why Correct: Jodhpur and Jaisalmer in Rajasthan's Thar Desert receive over 300 sunny days annually with high solar insolation, making them among India's best locations for solar energy development.
Distractor Analysis: Tidal energy requires coastal locations with significant tidal ranges, which these inland desert cities lack. Wind energy potential exists but is secondary to solar potential in this region. Hydroelectricity requires flowing water and elevation differences, absent in this flat, arid region.
Takeaway: Rajasthan leads India in solar power capacity, with the Bhadla Solar Park near Jodhpur being one of the world's largest solar parks.

Why Correct: The Grand Coulee Dam on the Columbia River in Washington, USA, holds the record as the world's highest gravity dam with a structural height of 168 meters.
Distractor Analysis: Bhakra Dam on the Sutlej River in Himachal Pradesh is India's highest gravity dam at 226 meters. Hirakud Dam on the Mahanadi River in Odisha is India's longest dam at 25.8 km. Mettur Dam on the Kaveri River in Tamil Nadu is one of South India's oldest dams built in 1934. Maithon Dam on the Barakar River in Jharkhand is India's first underground power station.
Takeaway: The Three Gorges Dam in China is the world's largest power station by installed capacity, while the Grand Coulee Dam remains the highest gravity dam globally.

Why Correct: Tuticorin (Thoothukudi) in Tamil Nadu has been historically renowned for pearl fishing in the Gulf of Mannar, with pearl oyster beds cultivated through traditional and modern mariculture techniques.
Distractor Analysis: Kandala (Kandla) in Gujarat is a major port for petroleum and bulk cargo, not pearl fishing. Kochi in Kerala is a commercial port and naval base with fishing industries but not specifically for pearls. Pondicherry (Puducherry) has fishing activities but lacks the historical pearl oyster beds of the Gulf of Mannar region.
Takeaway: India's pearl fisheries are primarily located in the Gulf of Mannar (Tamil Nadu coast) and the Gulf of Kutch (Gujarat), with Tuticorin being the most famous traditional center for pearl cultivation and trade.

Why Correct: The Kalpakkam Atomic Power Plant (specifically Unit-2 of the Prototype Fast Breeder Reactor) achieved criticality in 2022, making it the most recently activated nuclear power facility in India.
Distractor Analysis: Norora is not an existing nuclear power plant in India. Tarapore (Tarapur) was India's first nuclear power plant, commissioned in 1969. Kaiga Nuclear Power Plant in Karnataka has been operational since 2000.
Takeaway: India's nuclear power plants are located at Tarapur (Maharashtra), Rawatbhata (Rajasthan), Kalpakkam (Tamil Nadu), Narora (Uttar Pradesh), Kaiga (Karnataka), Kakrapar (Gujarat), and Kudankulam (Tamil Nadu).

Why Correct: Kolar in Karnataka hosts India's primary gold mines, Khetri in Rajasthan is a major copper mining area, Noamundi in Jharkhand contains significant iron ore deposits, and Jharia in Jharkhand is India's largest coal field.
Distractor Analysis: Noamundi produces iron ore, not gold. Jharia produces coal, not iron ore. Kolar does not produce coal.
Takeaway: India's largest iron ore reserves are in Odisha, while Singareni collieries in Telangana are another major coal-producing region.

Why Correct: Rajasthan accounts for over 40% of India's copper production, with major mines at Khetri, Kolihan, and Chandmari operated by Hindustan Copper Limited.
Distractor Analysis: Madhya Pradesh has the Malanjkhand copper mine but produces less than Rajasthan. Odisha has some copper reserves but minimal production. Bihar has no significant copper mining operations.
Takeaway: India imports about 90% of its copper requirement despite domestic production, with Chile being the world's largest copper producer.

Why Correct: Gulf of Cambay (Khambhat) has India's highest tidal range of 8-11 meters, providing the greatest potential for tidal energy generation.
Distractor Analysis: Gulf of Mannar has a moderate tidal range of 1-2 meters with limited potential. Chilika lake is India's largest brackish water lagoon but has low tidal energy potential due to shallow depth. Pulicat lake is India's second largest brackish water lagoon with minimal tidal energy potential.
Takeaway: Gulf of Kutch has India's second highest tidal energy potential with a tidal range of 5-7 meters, suitable for tidal power projects.