Geography Questions for RRB GROUP D

Physical Divisions of India

India is divided into 6 major physical regions: The Himalayan Mountains in the north, The Northern Plains (Indo-Gangetic Plain), The Peninsular Plateau (Deccan Plateau), The Coastal Plains (east and west), The Thar Desert in the northwest, and The Islands (Andaman and Nicobar in Bay of Bengal, Lakshadweep in Arabian Sea). The Himalayas are the youngest fold mountains in the world and act as a natural barrier. The Deccan Plateau is the oldest and hardest rock surface in India, made of igneous and metamorphic rocks.

• Himalayas — fold mountains, young, run east-west, 3 ranges: Himadri, Himachal, Shivalik
• Highest peak in India: Kangchenjunga (8586m), in Sikkim
• Northern Plains — formed by 3 rivers: Indus, Ganga, Brahmaputra
• Deccan Plateau — triangular, between Western and Eastern Ghats
• Western Ghats are continuous; Eastern Ghats are discontinuous (broken by rivers)
• Lakshadweep is a coral island group; Andaman and Nicobar are volcanic

Major Rivers of India

Indian rivers are divided into two types: Himalayan rivers (perennial — flow all year, fed by snow and rain) and Peninsular rivers (seasonal — depend on monsoon). Himalayan rivers include Ganga, Yamuna, Indus, Brahmaputra. Peninsular rivers include Godavari, Krishna, Kaveri, Mahanadi, Narmada, Tapi. Note: Narmada and Tapi flow west into Arabian Sea — they are exceptions among Peninsular rivers. Most Peninsular rivers flow east into Bay of Bengal.

• Longest river in India: Ganga (2525 km)
• Largest river basin: Ganga basin
• Brahmaputra enters India through Arunachal Pradesh; called Tsangpo in Tibet
• Godavari is called Dakshin Ganga (Ganga of the South)
• Narmada and Tapi flow through rift valleys (west direction)
• River with highest water discharge: Brahmaputra

States, Capitals and Important Facts

India has 28 states and 8 Union Territories (after 2019 reorganisation when J&K was split into J&K and Ladakh as UTs). The smallest state by area is Goa; largest is Rajasthan. The most populous state is Uttar Pradesh. Sikkim is the least populous state. The state with the longest coastline is Gujarat. The southernmost tip of mainland India is Kanyakumari (Tamil Nadu). The southernmost point of India overall is Indira Point in Andaman and Nicobar Islands.

• Largest state by area: Rajasthan
• Smallest state by area: Goa
• Largest state by population: Uttar Pradesh
• Longest coastline state: Gujarat
• India's total coastline: 7516 km (including islands)
• Newly added UTs: Jammu and Kashmir, Ladakh (from 2019)

Climate and Monsoon

India has a monsoon type of climate — hot summers, cool winters, and seasonal rainfall. The Southwest Monsoon (June to September) brings most of India's rainfall. It has two branches: Arabian Sea branch (hits Kerala first, around June 1) and Bay of Bengal branch (hits Northeast India). The Northeast Monsoon (October to December) gives rainfall to Tamil Nadu and Andhra Pradesh coast. Highest rainfall place in the world: Mawsynram, Meghalaya (also called Cherrapunji area). The rain shadow area (less rainfall) is on the leeward side of Western Ghats — Deccan Plateau gets less rain.

• Monsoon enters India: Kerala, around June 1
• Highest rainfall: Mawsynram, Meghalaya
• Lowest rainfall: Leh, Ladakh (cold desert)
• Northeast monsoon gives rain to Tamil Nadu during Oct-Dec
• Western Ghats windward side: heavy rain; leeward side (Deccan): rain shadow
• India climate type: Tropical Monsoon

World Geography — Key Facts

For RRB Group D, world geography is limited to basic facts — largest, smallest, longest, highest — and continents/oceans. Africa is the second largest continent; Asia is the largest. The Pacific Ocean is the largest and deepest ocean. The Sahara is the largest hot desert; the Antarctic is the largest cold desert. Mount Everest (8849m) is the highest peak in the world, located in Nepal/Tibet. The Amazon is the largest river by volume; the Nile is the longest river.

• Largest continent: Asia; Smallest: Australia
• Largest ocean: Pacific; Deepest point: Mariana Trench (Pacific)
• Longest river: Nile (Africa); Largest by volume: Amazon (South America)
• Highest mountain: Mount Everest (8849m), Nepal-Tibet border
• Largest country by area: Russia; Smallest country: Vatican City
• Largest hot desert: Sahara; Largest cold desert: Antarctica

Soil Types of India

India has 6 major types of soil. Alluvial soil is the most widespread and most fertile — found in the Northern Plains, ideal for wheat and rice. Black soil (Regur) is found in the Deccan/Maharashtra — best for cotton, retains moisture. Red soil is found in Peninsular India — iron rich, good for groundnut. Laterite soil is found in high rainfall areas like Kerala, Karnataka — iron and aluminium rich, poor fertility. Desert soil is found in Rajasthan. Mountain soil is found in hilly areas.

• Most fertile and widespread: Alluvial soil (Northern Plains)
• Best for cotton: Black soil (Deccan Plateau, Maharashtra)
• Black soil also called Regur soil
• Red soil: iron rich, gives reddish colour, found in Tamil Nadu, Odisha
• Laterite soil: poor in nitrogen and potassium, but good for tea and coffee
• Alluvial soil types: Khadar (new, more fertile) and Bhangar (old)

• Confusing Mawsynram and Cherrapunji — both are in Meghalaya and both get extreme rainfall, but Mawsynram currently holds the official record for highest average rainfall.
• Mixing up longest vs largest river — Nile is longest, but Amazon carries the most water (largest by discharge).
• Saying Kangchenjunga is the highest peak in the world — it is only the highest peak in INDIA and 3rd in the world. Everest is highest in the world.
• Confusing Eastern and Western Ghats — Western Ghats are continuous (no breaks), Eastern Ghats are discontinuous (cut by rivers like Godavari, Krishna).
• Thinking Ganga is the longest river in India — it is the longest, but many students confuse it with Indus which is longer overall but most of it flows outside India (in Pakistan).

• GRAB for Himalayan Rivers: Ganga, Ravi, Alaknanda, Beas — all originate in Himalayas and are perennial (GRAB your water all year).
• NT Goes West: Narmada and Tapi — the two Peninsular rivers that flow West. All others flow East. Think NT = Not Typical.
• AFRICA has the SAHARA — A for A. Pacific is the biggest ocean — P for Predominant. These simple letter links help in MCQs.
• BLACK soil = BLACK cotton. Remember: Black soil grows Black gold (cotton). Found in Black Deccan (Maharashtra, MP, Gujarat).

• RRB Group D Geography questions are almost always direct single-fact MCQs — Which river, Which state, Which peak, Which soil. No map reading or lengthy analysis needed.
• Superlatives are most frequently asked — largest, smallest, longest, highest, wettest, driest. Make a separate list of superlatives and revise them last.
• River-State combinations are a favourite — on which river is Varanasi? (Ganga), Which river flows through Kerala? (Periyar). Practice linking rivers to cities and states.
• Recent changes like the J&K reorganisation (2019) and updated census data often appear — know that India now has 28 states and 8 UTs, not the old 29+7.
• One question on world geography is common — usually about the largest/deepest ocean, highest mountain, or largest country. These are easy marks if memorised — do not skip world geography.