Indian Geography — States, Rivers & Minerals

Why This Chapter Matters

World geography is the chapter where RRB NTPC quietly tests two subjects at once: pure geography (continents, capitals, physical records) and current affairs (which organisation is headquartered where, which border is in the news). That overlap is exactly why this chapter rewards preparation more than almost any other, because a fact you lock in here can answer both a "static GK" question and a "current affairs" question depending on how the paper phrases it that year.

The single biggest mistake aspirants make with world geography is trying to memorise every country and capital on earth in one sitting, panicking, and giving up on the chapter entirely. That is the wrong strategy. RRB NTPC repeatedly tests a fairly small, predictable set: the world's physical records (longest river, highest peak), a shortlist of frequently-referenced countries and capitals, and headquarters of international organisations that appear in the news. Learn that shortlist properly, tied to memory hooks, and you will answer far more questions than a student who tried to memorise all 195 countries and remembered none of them under pressure.

Continents Overview

The world is divided into seven continents: Asia, Africa, North America, South America, Antarctica, Europe, and Australia (Oceania). A few comparative facts appear repeatedly in exams, so build them as a single mental ladder from biggest to smallest.

Asia is both the largest continent by area and the most populous, home to over half the world's population, and it hosts the world's highest mountain range (the Himalayas) and its most populous countries, India and China. Africa is the second-largest continent by both area and population, and it is unique for containing the largest hot desert (the Sahara) alongside the longest river in the world (the Nile). North America is the third-largest continent, home to the world's largest economy, the United States, and includes Canada, Mexico, and the Central American nations. South America hosts the Amazon, the world's largest rainforest and the river carrying the largest volume of water on earth, plus the Andes, the longest continental mountain range in the world. Antarctica is the coldest, driest, and windiest continent, almost entirely covered by ice, with no permanent human population, and it is governed by international treaty (the Antarctic Treaty System) rather than by any single nation. Europe, though relatively small in area, has historically held massive global economic and political weight, and it is technically part of the same landmass as Asia, together called Eurasia, separated more by cultural and historical convention than by a genuine physical divide. Australia (Oceania) is the smallest continent by land area, and Australia itself is also classified as the world's largest island, depending on how the question is framed; the same landmass gets two different labels because "continent" and "island" are defined by different criteria (a continent is judged by tectonic plate and cultural convention, an island simply by being surrounded by water and smaller than a continent).

Memory hook: picture the continents lined up by size like a family photo from tallest to shortest: Asia (grandparent), Africa, North America, South America, Antarctica, Europe, Australia (the youngest, smallest member). "Asia's Africa Never Stops After Every Australia" using the first letters keeps the order (Asia, Africa, North America, South America, Antarctica, Europe, Australia) in your head under exam pressure.

Exam trap: students sometimes confuse Europe and Asia as fully separate landmasses. They sit on the same continuous landmass, with the boundary conventionally drawn along the Ural Mountains in Russia, meaning Russia itself is a transcontinental country spanning both.

Important Countries and Capitals

Rather than list every nation, focus on the countries that repeatedly show up in RRB-level papers, either for their physical records, their economic weight, or their current-affairs relevance.

India's neighbours deserve priority, since border and relations questions draw directly from current affairs: Pakistan (capital Islamabad), China (capital Beijing), Nepal (capital Kathmandu), Bhutan (capital Thimphu), Bangladesh (capital Dhaka), Myanmar (capital Naypyidaw, having shifted from Yangon in 2005), Sri Lanka (capital Sri Jayawardenepura Kotte, its official administrative capital, though Colombo remains the commercial capital and the city most people mean when they say "Sri Lanka's capital" in casual usage, a genuine exam trap), and the Maldives (capital Malé), reached by sea rather than sharing a land border with India.

Exam trap: Naypyidaw versus Yangon for Myanmar catches many students. Yangon (formerly Rangoon) was the capital until 2005 and remains Myanmar's largest and most well-known city, but the official capital has been Naypyidaw since the military government shifted it. If a question asks for the current capital, Naypyidaw is correct; if it asks for the largest city, Yangon is correct.

Beyond neighbours, a compact list worth memorising by region:

Middle East / West Asia: Saudi Arabia (Riyadh), Iran (Tehran), Iraq (Baghdad), Israel (Jerusalem, though this remains diplomatically contested with several countries maintaining embassies in Tel Aviv instead), United Arab Emirates (Abu Dhabi, with Dubai as its most famous city but not its capital, another frequently confused pair), Turkey (Ankara, not Istanbul, which is the largest city but not the capital).

East and Southeast Asia: Japan (Tokyo), South Korea (Seoul), North Korea (Pyongyang), Indonesia (Jakarta, though the government has been developing Nusantara as a new planned capital in recent years), Thailand (Bangkok), Vietnam (Hanoi), Singapore (Singapore, a city-state where the city and country share the same name), Malaysia (Kuala Lumpur).

Europe: United Kingdom (London), France (Paris), Germany (Berlin), Italy (Rome), Spain (Madrid), Russia (Moscow, the world's largest country by area and spanning both Europe and Asia), Switzerland (Bern, not Zurich or Geneva, both larger and more internationally famous, a classic exam trap).

Americas: United States (Washington, D.C., not New York, its largest and most famous city), Canada (Ottawa, not Toronto), Brazil (Brasília, not Rio de Janeiro, which was the capital until 1960), Argentina (Buenos Aires), Mexico (Mexico City).

Africa: Egypt (Cairo), South Africa (uniquely has three capitals: Pretoria for administration, Cape Town for the legislature, and Bloemfontein for the judiciary, a genuinely distinctive fact examiners like to test), Nigeria (Abuja, not Lagos, which is the largest city but not the capital), Kenya (Nairobi).

Memory hook: whenever a country's capital is not its most famous or largest city (Turkey, UAE, USA, Canada, Brazil, Nigeria, Myanmar), think of it as the country deliberately keeping its "business face" and its "government face" in two different cities, the way a company might have its factory in one city and its head office in another.

World's Physical Records

This is one of the highest-yield sub-sections in the entire GA syllabus, because these facts are stable, well-defined, and asked in almost every exam cycle.

• Longest river: the Nile, in Africa, at approximately 6,650 km, though the Amazon in South America runs a close, sometimes-debated second depending on measurement methodology, and carries by far the largest volume of water of any river on earth, roughly a fifth of all the river water that flows into oceans worldwide.
• Highest mountain peak: Mount Everest, on the Nepal-China (Tibet) border, at 8,849 metres, the officially recognised height as of the most recent joint Nepal-China survey.
• Largest hot desert: the Sahara, in North Africa, spanning roughly 9.2 million square kilometres. Exam trap: the largest desert overall (including cold deserts) is actually Antarctica, since a desert is technically defined by low precipitation, not by heat; students who assume "desert" always means "hot and sandy" lose this mark repeatedly.
• Largest ocean: the Pacific Ocean, covering more area than all the continents combined.
• Smallest ocean: the Arctic Ocean, also the shallowest and coldest.
• Largest continent: Asia, both by area and population.
• Smallest continent: Australia (Oceania).
• Largest country by area: Russia, spanning eleven time zones across Europe and Asia.
• Smallest country by area: Vatican City, an independent city-state entirely surrounded by Rome, Italy.
• Most populous country: India overtook China in total population in recent years, a genuinely current-affairs-relevant fact worth keeping updated in your mind as of your exam year.
• Largest island: Greenland (an autonomous territory of Denmark), if Australia is classified as a continent rather than an island, which is the convention most exams follow.
• Largest freshwater lake by surface area: Lake Superior, one of North America's Great Lakes.
• Largest lake overall: the Caspian Sea, technically a saltwater lake bordered by Russia, Kazakhstan, Turkmenistan, Iran, and Azerbaijan, larger than any freshwater lake despite the misleading name "sea."
• Deepest lake: Lake Baikal, in Russia, also the largest freshwater lake by volume, holding roughly a fifth of the world's unfrozen fresh water.
• Longest mountain range (continental): the Andes, running along the western edge of South America.
• Longest mountain range (overall, including underwater): the Mid-Ocean Ridge system, mostly submerged, far longer than any range on land.
• Highest waterfall: Angel Falls, in Venezuela.
• Largest rainforest: the Amazon Rainforest, spanning Brazil and several neighbouring countries.
• Largest coral reef system: the Great Barrier Reef, off the coast of Australia, visible even from space and the largest living structure on earth.
• Driest place (excluding polar deserts): the Atacama Desert, in Chile, where some weather stations have never recorded measurable rainfall.
• Deepest point in the ocean: the Mariana Trench, in the western Pacific, as covered in the physical geography chapter.

Memory hook: group the records into a single mental "world records podium" the way you would picture an athletics ceremony: gold for the actual record holder, silver for the "close second that examiners like to test as a distractor" (Amazon behind Nile, Antarctica behind Sahara for deserts), and you will rarely get tricked by option pairs designed to test whether you truly know which fact belongs to which record.

Major World Organizations' Headquarters

This section blends static geography with genuine current affairs, since organisation headquarters questions appear in both sections of the exam.

• United Nations (UN): headquartered in New York City, USA, with major additional offices in Geneva, Vienna, and Nairobi.
• World Health Organization (WHO): headquartered in Geneva, Switzerland.
• International Monetary Fund (IMF): headquartered in Washington, D.C., USA.
• World Bank: also headquartered in Washington, D.C., USA, and frequently confused with the IMF since both sit in the same city and deal with global finance; the core distinction worth remembering is that the IMF focuses on monetary stability and short-term balance-of-payments support, while the World Bank focuses on long-term development financing and poverty reduction projects.
• World Trade Organization (WTO): headquartered in Geneva, Switzerland.
• UNESCO (United Nations Educational, Scientific and Cultural Organization): headquartered in Paris, France.
• UNICEF (United Nations Children's Fund): headquartered in New York City, USA.
• International Court of Justice (ICJ): headquartered in The Hague, Netherlands, the primary judicial body of the United Nations.
• International Criminal Court (ICC): also headquartered in The Hague, Netherlands, though it is a separate, independent body from the ICJ, another commonly confused pair.
• NATO (North Atlantic Treaty Organization): headquartered in Brussels, Belgium.
• ASEAN (Association of Southeast Asian Nations): headquartered in Jakarta, Indonesia.
• SAARC (South Asian Association for Regional Cooperation): headquartered in Kathmandu, Nepal.
• OPEC (Organization of the Petroleum Exporting Countries): headquartered in Vienna, Austria.
• International Olympic Committee (IOC): headquartered in Lausanne, Switzerland.
• Interpol: headquartered in Lyon, France.
• BRICS (grouping India, Brazil, Russia, China, South Africa and expanded members) operates without a single fixed headquarters city in the same way as the UN, since it functions through a rotating presidency, though its New Development Bank is headquartered in Shanghai, China.

Memory hook: notice how many major bodies cluster in just three or four cities: Geneva (WHO, WTO, and many UN human rights bodies), Washington D.C. (IMF, World Bank), New York (UN, UNICEF), and The Hague (ICJ, ICC). Learning these four "headquarters cities" first, and which organisations sit in each, covers a disproportionate share of this entire topic.

Exam trap: students often assume all UN-linked bodies sit in New York because the UN itself does. In reality, several major UN-affiliated bodies deliberately sit outside New York, especially in Geneva and Vienna, so always double check the specific organisation rather than defaulting to "New York" as a safe guess.

Current Geopolitical Geography Relevant for Exams

This section covers geography that intersects directly with news events, the kind of fact that could appear either as a pure geography question or dressed up as a current affairs question.

India's land borders touch seven countries: Pakistan, China, Nepal, Bhutan, Bangladesh, Myanmar, and Afghanistan (a short border through the Pakistan-occupied Gilgit-Baltistan region, which India does not administer). India's maritime neighbours additionally include Sri Lanka and the Maldives, reached by sea. Exam trap: students often forget Afghanistan when listing India's neighbours since the shared border segment is short and lies in a disputed territory, but it is still tested.

The Line of Control (LoC) separates Indian-administered Jammu & Kashmir from Pakistan-administered territory, and it is not an internationally recognised border, only a ceasefire line established after conflict. The Line of Actual Control (LAC) separates Indian and Chinese-held territory along their shared, largely undemarcated border, and is distinct from the LoC in both location (the LAC lies along the China border, the LoC along the Pakistan border) and legal status. Exam trap: these two terms, LoC and LAC, are among the most confused pairs in the entire GA syllabus; remember LoC = Pakistan, LAC = China, and you will never mix them up again.

Major current world regions and conflict zones worth basic familiarity: the ongoing tension in the Middle East, particularly around Israel-Palestine, remains one of the world's longest-running geopolitical flashpoints. The South China Sea is a heavily disputed maritime region where China's expansive claims overlap with those of several Southeast Asian nations including Vietnam, the Philippines, and Malaysia, making it a recurring subject in international relations coverage. The Russia-Ukraine conflict, ongoing since Russia's 2022 invasion, has reshaped European security discussions and is frequently referenced in current-affairs-linked geography questions about European borders and NATO's role.

Regional group geography worth knowing: the European Union (EU), headquartered administratively in Brussels, is an economic and political union of European nations, distinct from the geographic continent of Europe itself, since not every European country is an EU member (Switzerland and Norway, for instance, are not). The G7 groups seven major advanced economies (USA, UK, Canada, France, Germany, Italy, Japan), while the G20 is a broader forum including major and emerging economies such as India, China, Brazil, and South Africa alongside the G7 members, plus the European Union and African Union as institutional members.

India's strategic maritime geography also draws exam attention: the Indian Ocean, the third-largest ocean in the world, is central to India's trade and strategic positioning, with key choke points like the Strait of Malacca (between Malaysia, Indonesia, and Singapore, one of the world's busiest and most strategically important shipping lanes) regularly referenced in current-affairs-linked geography questions about trade routes and regional security.

Memory hook: to keep LoC and LAC straight permanently, remember "L-o-C, Locked with Cross-border Conflict (Pakistan)" versus "L-A-C, Line Across China." The shared letter pattern (L-o versus L-A) combined with the country each links to should stick after two or three practice questions.

Quick Revision — One-Line Facts

• There are seven continents: Asia, Africa, North America, South America, Antarctica, Europe, and Australia (Oceania).
• Asia is the largest continent by both area and population.
• Africa hosts the Sahara, the largest hot desert, and the Nile, the world's longest river.
• Europe and Asia together form the single landmass called Eurasia, divided along the Ural Mountains.
• Naypyidaw is Myanmar's official capital; Yangon is its largest city.
• Sri Jayawardenepura Kotte is Sri Lanka's official administrative capital; Colombo is its commercial capital.
• Turkey's capital is Ankara, not Istanbul, which is only the largest city.
• Switzerland's capital is Bern, not Zurich or Geneva.
• South Africa uniquely has three capitals: Pretoria (administrative), Cape Town (legislative), Bloemfontein (judicial).
• Brazil's capital is Brasília; Rio de Janeiro was the capital only until 1960.
• Nigeria's capital is Abuja, not Lagos, which is the largest city.
• The Nile is the longest river in the world at roughly 6,650 km.
• The Amazon carries the largest volume of water of any river on earth.
• Mount Everest, on the Nepal-China border, is the world's highest peak at 8,849 metres.
• Antarctica, not the Sahara, is technically the world's largest desert by the strict definition of low precipitation.
• The Pacific Ocean is the largest and deepest ocean; the Arctic Ocean is the smallest.
• Russia is the largest country in the world by area, spanning Europe and Asia.
• Vatican City is the world's smallest country by area.
• The Caspian Sea is the largest lake in the world, though it is saltwater.
• Lake Baikal, in Russia, is the world's deepest lake and holds the most unfrozen fresh water.
• The Great Barrier Reef, off Australia, is the largest living structure on earth.
• The Atacama Desert, in Chile, is among the driest places on earth.
• The United Nations is headquartered in New York City.
• The WHO and WTO are both headquartered in Geneva, Switzerland.
• The IMF and World Bank are both headquartered in Washington, D.C.
• The ICJ and ICC are both headquartered in The Hague, Netherlands, but are separate bodies.
• NATO is headquartered in Brussels, Belgium.
• SAARC is headquartered in Kathmandu, Nepal.
• India shares land borders with seven countries: Pakistan, China, Nepal, Bhutan, Bangladesh, Myanmar, and Afghanistan.
• The Line of Control (LoC) lies along the India-Pakistan boundary; the Line of Actual Control (LAC) lies along the India-China boundary.

Memory Tables

Table 1: Continents by Size (Largest to Smallest)

Rank	Continent	Notable Fact
1	Asia	Largest by area and population
2	Africa	Home to Sahara and the Nile
3	North America	Includes USA, Canada, Mexico
4	South America	Home to Amazon rainforest
5	Antarctica	Coldest, no permanent population
6	Europe	Shares landmass with Asia (Eurasia)
7	Australia (Oceania)	Smallest continent

Table 2: World Physical Records

Record	Holder	Location
Longest river	Nile	Africa
Highest peak	Mount Everest	Nepal-China border
Largest hot desert	Sahara	North Africa
Largest ocean	Pacific Ocean	—
Largest country (area)	Russia	Europe-Asia
Smallest country (area)	Vatican City	Within Rome, Italy
Deepest lake	Lake Baikal	Russia
Largest lake (saltwater)	Caspian Sea	Russia/Central Asia/Iran

Table 3: Organization Headquarters Cluster Map

City	Organizations Based There
New York, USA	UN, UNICEF
Washington D.C., USA	IMF, World Bank
Geneva, Switzerland	WHO, WTO
The Hague, Netherlands	ICJ, ICC
Brussels, Belgium	NATO, EU (administrative)
Vienna, Austria	OPEC

Table 4: Frequently Confused Capital Pairs

Country	Capital (Correct)	Commonly Confused City
Turkey	Ankara	Istanbul (largest city, not capital)
Myanmar	Naypyidaw	Yangon (former capital, largest city)
Nigeria	Abuja	Lagos (largest city, not capital)
Switzerland	Bern	Zurich/Geneva (more famous cities)
Brazil	Brasília	Rio de Janeiro (capital until 1960)
USA	Washington, D.C.	New York (largest city, not capital)

Practice MCQs

Q1. Which continent is both the largest by area and the most populous? (a) Africa (b) Asia (c) Europe (d) North America

Q2. The boundary between Europe and Asia is conventionally drawn along which mountain range? (a) Alps (b) Andes (c) Ural Mountains (d) Atlas Mountains

Q3. What is the official capital of Myanmar? (a) Yangon (b) Naypyidaw (c) Mandalay (d) Bago

Q4. Which country has three capitals for administrative, legislative, and judicial functions respectively? (a) South Africa (b) Nigeria (c) Bolivia (d) Sri Lanka

Q5. Which river is generally recognised as the longest in the world? (a) Amazon (b) Nile (c) Yangtze (d) Mississippi

Q6. By the strict definition of a desert based on low precipitation, which is technically the largest desert in the world? (a) Sahara (b) Gobi (c) Antarctica (d) Thar

Q7. Mount Everest lies on the border of which two countries/regions? (a) India and Nepal (b) Nepal and China (Tibet) (c) India and China (d) Bhutan and China

Q8. Which is the largest country in the world by total area? (a) Canada (b) China (c) USA (d) Russia

Q9. The Caspian Sea, the largest lake in the world by surface area, is best described as: (a) A freshwater lake (b) A saltwater lake (c) A man-made reservoir (d) A glacial lake

Q10. Where are the headquarters of the World Health Organization (WHO) located? (a) New York, USA (b) Geneva, Switzerland (c) Paris, France (d) Vienna, Austria

Q11. The International Monetary Fund (IMF) and the World Bank are both headquartered in: (a) New York, USA (b) Geneva, Switzerland (c) Washington, D.C., USA (d) London, UK

Q12. The International Court of Justice (ICJ) is headquartered in: (a) Brussels, Belgium (b) The Hague, Netherlands (c) Geneva, Switzerland (d) Vienna, Austria

Q13. Which of the following correctly describes India's land borders? (a) India shares land borders with six countries (b) India shares land borders with seven countries, including Afghanistan (c) India shares no land border with China (d) India shares a land border with Sri Lanka

Q14. The Line of Control (LoC) separates Indian-administered territory from which country? (a) China (b) Bangladesh (c) Pakistan (d) Myanmar

Q15. The Strait of Malacca, a major global shipping route, lies between which countries? (a) India and Sri Lanka (b) Malaysia, Indonesia, and Singapore (c) Japan and South Korea (d) Iran and UAE

Answer Key

Q	Answer	Reason
1	(b)	Asia leads all continents in both total land area and population, hosting India and China alone.
2	(c)	The Ural Mountains in Russia conventionally mark the Europe-Asia boundary, even though both sit on one continuous landmass.
3	(b)	Naypyidaw has been Myanmar's official capital since 2005, though Yangon remains the largest and most well-known city.
4	(a)	South Africa splits its capital functions across Pretoria, Cape Town, and Bloemfontein, a genuinely unique national arrangement.
5	(b)	The Nile, at roughly 6,650 km, is generally recognised as the world's longest river, narrowly ahead of the Amazon in most measurements.
6	(c)	A desert is defined by low precipitation, not heat, so ice-covered but extremely dry Antarctica technically outranks the Sahara in total area.
7	(b)	Mount Everest sits directly on the border between Nepal and the Tibet region of China.
8	(d)	Russia is the largest country in the world by area, spanning eleven time zones across two continents.
9	(b)	Despite being called a "sea" and functioning as the world's largest lake, the Caspian Sea is saltwater, not fresh.
10	(b)	The WHO is headquartered in Geneva, Switzerland, alongside several other major international bodies.
11	(c)	Both the IMF and the World Bank are headquartered in Washington, D.C., though they serve different financial functions.
12	(b)	The ICJ, the UN's main judicial body, sits in The Hague, Netherlands, along with the separate International Criminal Court.
13	(b)	India shares land borders with seven countries: Pakistan, China, Nepal, Bhutan, Bangladesh, Myanmar, and a short stretch with Afghanistan.
14	(c)	The Line of Control separates Indian-administered Jammu & Kashmir from Pakistan-administered territory.
15	(b)	The Strait of Malacca runs between Malaysia, Indonesia, and Singapore, forming one of the world's busiest shipping lanes.