Indian Geography: A Study Guide to Landforms, Rivers, Climate, Soils and Resources

Geography questions reward people who can picture the map. Most facts become easy when they are tied to a place — a mountain range, a river basin, a coast. This guide builds the picture in layers: where India is, what its land looks like, how water and weather work, and what grows and is mined where.

Location and extent

India lies in the northern and eastern hemispheres, between roughly 8°N and 37°N latitude. The Tropic of Cancer passes through eight states: Gujarat, Rajasthan, Madhya Pradesh, Chhattisgarh, Jharkhand, West Bengal, Tripura and Mizoram. The Standard Meridian of 82°30′E passes through Mirzapur (Uttar Pradesh) and fixes Indian Standard Time, which is 5 hours 30 minutes ahead of UTC.

India covers about 3.28 million square kilometres and is the seventh-largest country by area. Its land neighbours are Pakistan, Afghanistan (via the northern territories), China, Nepal, Bhutan, Bangladesh and Myanmar; Sri Lanka and the Maldives are its close sea neighbours. Its coastline borders the Arabian Sea, the Bay of Bengal and the Indian Ocean.

The six physical divisions

1. The Himalayas — the young fold mountains of the north, in three parallel ranges: Himadri (Greater Himalaya, the highest), Himachal (Lesser) and Shiwaliks (outer foothills). Kangchenjunga (8,586 m, on the Sikkim–Nepal border) is the highest peak in India and the third highest in the world. Nanda Devi (Uttarakhand) is the peak usually cited as the highest lying entirely within India.
2. The Northern Plains — built by the Indus, Ganga and Brahmaputra and their tributaries; fertile alluvial soil makes this the agricultural heartland.
3. The Peninsular Plateau — an ancient landmass. The Deccan Plateau is bordered by the Western Ghats (the Sahyadri, which receive heavy rainfall) and the lower, broken Eastern Ghats. Anamudi in Kerala (2,695 m) is the highest peak of peninsular India.
4. The Thar Desert — in western Rajasthan, with very low rainfall.
5. The Coastal Plains — the narrow western coast (Konkan, Malabar) and the broader eastern coast (Coromandel, Northern Circars).
6. The Islands — Andaman and Nicobar in the Bay of Bengal and Lakshadweep in the Arabian Sea.

Rivers: two systems

Himalayan rivers — the Indus, Ganga and Brahmaputra — are perennial because they are fed by snow and rain. The Ganga (about 2,525 km within India) is the longest river in India, formed at Devprayag when the Alaknanda and Bhagirathi meet; the Yamuna joins it at Prayagraj.

Peninsular rivers are rain-fed and seasonal. Most flow east into the Bay of Bengal (the Godavari, the longest peninsular river; the Krishna; the Kaveri; the Mahanadi), while the Narmada and Tapi flow west into the Arabian Sea through rift valleys. The Godavari is sometimes called the "Dakshin Ganga".

Climate and the monsoon

India has a tropical monsoon climate, with four seasons:

• Winter (December–February): cool and dry in the north.
• Summer (March–May): hot, with dust storms and the loo in the north-west.
• Southwest monsoon (June–September): brings most of the rainfall; the Western Ghats and the north-east receive the heaviest falls. Mawsynram in Meghalaya is among the wettest places on Earth.
• Retreating monsoon (October–November): the north-east monsoon brings rain to Tamil Nadu's coast.

Soils, crops and resources

Crop seasons: Kharif (sown with the monsoon, harvested in autumn — rice, maize, cotton), Rabi (sown in winter, harvested in spring — wheat, mustard, gram) and Zaid (a short summer season).

Mineral belts: iron ore and coal are concentrated in the plateau of Jharkhand, Odisha and Chhattisgarh; bauxite in Odisha; copper in Rajasthan; and mineral oil in Assam, Gujarat and offshore at Mumbai High.

People and census facts

According to the 2011 Census (the most recent full census used in most questions), India's population was about 121 crore. Uttar Pradesh is the most populous state. Kerala has the highest literacy rate and the highest sex ratio. Always check whether a question asks for density, literacy or sex ratio; they have different leaders.

Mix-ups to avoid

1. Kangchenjunga vs K2 vs Nanda Devi — Kangchenjunga is the highest peak in India; K2, the highest in the Karakoram, lies in territory India claims but does not administer; Nanda Devi is the usual answer for the highest peak wholly inside India.
2. Godavari vs Ganga — longest peninsular river versus longest river in India.
3. West-flowing vs east-flowing rivers — only the Narmada and Tapi (and short coastal streams) flow west.
4. Western Ghats vs Eastern Ghats — continuous and high versus broken and lower.
5. Kharif vs Rabi — monsoon crops versus winter crops.
6. Population vs density — Uttar Pradesh leads in population, not in density.

How to prepare

1. Trace the main rivers on a blank outline map and mark one city on each.
2. Memorise the six physical divisions in order, then add three features to each.
3. Pair each crop with a soil and a season; most agriculture questions reduce to this.
4. Treat numbers as ranges you recognise (for example, "about 3.28 million square kilometres") rather than digits to the last place.

Put it into practice

Try the Indian Geography quiz and see our companion guide to Indian places for cities, states and national parks.