Land Transport: Railway Networks and Their Distribution
Geography › Transport and Communication · Topic 14.2
Indian Railways, begun in 1853 with a 34 km line from Bombay to Thane, is one of the largest rail networks in the world, with about 70,000 route km, run by a single government undertaking through regional zones. It uses broad, metre and narrow gauges, is almost fully electrified on the broad gauge, and is building dedicated freight corridors and a high-speed line. It carries a major share of the country's long-distance passengers and bulk freight.
7 min read · UPSC Prelims · Geography · Transport and Communication
At a Glance
- First line Bombay to Thane, 1853, 34 km
- Network About 70,000 route km
- Broad gauge 1.676 m; about 99.6 per cent electrified (2026)
- Freight corridors Eastern and Western DFC
- High-speed Mumbai–Ahmedabad under construction
- Exam link UPSC Prelims, Geography: Transport and Communication
Where Does It Fit?
This topic follows roads and takes the railway, the main mode for bulk and long-distance transport. It prepares the ground for the sea routes, ports and trans-continental lines that carry goods across the world. Previous topic: Land Transport: Road Networks and Their Distribution. Next topic: Suez Canal 1869; sea-level; Mediterranean to Red Sea Panama Canal 1914; locks;…">Water Transport: Sea Routes and Shipping Canals.
How Is Indian Railways Organised?
In short: a single government railway runs one of the largest networks in the world, divided into zones and three gauges.
The first passenger train ran on 16 April 1853 between Bombay and Thane, a distance of 34 km. The railways knit the country together, carry bulk freight such as coal, iron ore, cement, food grains and fertiliser, and are the largest government undertaking. Because of their size, they are divided into railway zones, each under a General Manager, and the number has risen to around 18, including Central (Mumbai CSMT), Western (Churchgate), Northern (New Delhi), Southern (Chennai), Eastern and South Eastern (Kolkata), South Central (Secunderabad), North Eastern (Gorakhpur), the North East Frontier (Maligaon), the East Coast (Bhubaneswar) and the South Coast Railway zone (Visakhapatnam). The Railway Board in New Delhi is the apex body.
| Gauge | Width | Use |
|---|---|---|
| Broad gauge | 1.676 m | The main lines; the great majority of the network, almost all electrified |
| Metre gauge | 1.000 m | Older lines, being converted to broad gauge under the Unigauge project |
| Narrow gauge | 0.762 m or 0.610 m | Hill and heritage railways and some local lines |
What Are the Main Features and Projects?
- Electrification: by 2026 about 99.6 per cent of the broad gauge network was reported to be electrified, which is among the highest shares in the world after Switzerland, cutting diesel imports and emissions.
- Dedicated Freight Corridors: the Eastern corridor from Ludhiana towards Dankuni and the Western corridor from the Jawaharlal Nehru Port near Mumbai to Dadri near Delhi, built to move heavy freight on separate tracks and release the existing lines for passenger trains. The Western corridor is largely operational.
- Passenger trains and speed: Rajdhani, Shatabdi, Duronto and, since 2019, the self-propelled Vande Bharat trains. The Mumbai–Ahmedabad high-speed rail line, about 508 km, with Japanese technology, is under construction, and its timeline has slipped to later in this decade.
- Safety: the Kavach anti-collision system is being installed, following accidents such as the Balasore collision of June 2023.
- Difficult terrain: the Konkan Railway, 741 km between Roha and Mangalore, was opened in 1998 through the Western Ghats with many tunnels and bridges; the Udhampur–Srinagar–Baramulla link with the Chenab Bridge, the world’s highest railway arch bridge, opened in 2025; the line to Aizawl in Mizoram reached in 2025; and the new Pamban rail bridge to Rameswaram, with a vertical lift span, also opened in 2025.
- Mountain railways: the Darjeeling Himalayan Railway, the Nilgiri Mountain Railway and the Kalka–Shimla Railway are UNESCO World Heritage Sites, as is the Chhatrapati Shivaji Terminus in Mumbai.
- Metro rail: operates in a growing number of cities, as in Features and Patterns of India’s Urbanization.
What Are the Challenges?
Railways have seen their share of freight fall over decades, from the majority of freight in the 1950s to about a quarter or less today, while roads gained. The causes include slow, congested trunk routes, high freight rates that cross-subsidise passenger fares, delays and the lack of last-mile links. The target of the National Rail Plan is to raise the rail share of freight to about 45 per cent by 2030 through freight corridors, new terminals and multimodal links. Other problems are the safety record, old tracks and signals, finance, and the pressure of holding low passenger fares.
Energy efficiency is the main argument for rail: moving a tonne of freight by rail uses a fraction of the fuel used by a truck, so a shift from road to rail is central to cutting the logistics costs and emissions, as in Land Transport: Road Networks and Their Distribution. As an analytical point, the railways are most valuable where they carry the heavy, bulky, long-haul traffic of coal, steel, cement and food grains between the mineral belt of the east and the consumption centres of the west and the north, which is why the corridors follow those lines, and why a freight shift to rail needs reliable timetables and terminals.
How Are Railways Spread Across the World?
| Region | Pattern | Examples |
|---|---|---|
| Europe | Densest network, passenger-heavy, high-speed lines | TGV in France from 1981, ICE in Germany, the Channel Tunnel to Britain |
| East Asia | Fastest growth in high-speed rail | Shinkansen in Japan from 1964; China has built the longest high-speed network, over 45,000 km |
| North America | Long freight lines; passengers few | Heavy trains of coal, grain and containers across the United States and Canada |
| Russia and Central Asia | Long trunk lines through cold lands | The Trans-Siberian and its branches; see Trans-Continental Railways of the World (Trans-Siberian, Trans-Canadian, Trans-Australian) |
| Africa and South America | Sparse lines from mines and plantations to ports | Copperbelt lines to the coast, iron ore lines in Brazil |
- Gauge: standard gauge, 1.435 m, is used on most of the world’s lines. India, Pakistan, Sri Lanka, Argentina and Chile use broad gauge, so cross-border trains need a change of gauge or of bogies.
- Why railways cluster: they follow flat land, coal and ore fields and big cities, so dense networks coincide with the industrial belts of Major Industrial Regions of the World.
- Advantages: large load, low cost per tonne-km over long distances, low emissions per tonne, and reliability in bad weather.
- Limits: high capital cost, fixed routes and the need to transfer goods at both ends.
The economic impact of railways shows in India, where lines from the coalfields of Jharkhand and Odisha feed the steel and power plants described in coking coal, limestone, water Process Blast furnace to pig iron to steel Largest producer China,…">Iron and Steel Industry: Production Process, Location, Distribution, Global Production, International Trade, and the mineral belt moves its ores to ports on the east coast.
Why Is This Topic Important?
- Facts Gauges and zones asked
- Projects Corridors and bridges
- Policy Rail share of freight
What Came Next?
The next topic describes sea routes and shipping canals, the arteries of world trade. Next topic: Water Transport: Sea Routes and Shipping Canals.
Key People and Terms
- Gauge Distance between rails
- Broad gauge 1.676 m track
- DFC Dedicated Freight Corridor
- Kavach Anti-collision system
- Route km Length of the route
- Zone Regional unit of the railway
Exam Corner
Points to Remember
- First train: 1853, Bombay to Thane.
- Broad gauge: 1.676 m.
- Konkan Railway: 1998, 741 km.
- Three mountain railways are UNESCO sites.
- Rail freight share target: 45 per cent by 2030.
Do Not Confuse With
- Route km and track km Length of the line versus total tracks
- Broad and metre gauge 1.676 m versus 1.0 m
- Rajdhani and Vande Bharat Locomotive-hauled versus self-propelled train
Memory Hook
Bombay to Thane in 1853, broad 1.676, electric now; freight on its own corridors and mountains in UNESCO’s three.
Mains Angle
Questions ask about the role and reform of railways. These points add depth.
- Role Bulk freight and mass travel
- Reform Corridors and electrification
- Gap Falling freight share and safety
A Question You May Face
An original practice question, not a past paper question.
“Discuss the role of Indian Railways in the economy and evaluate the importance of Dedicated Freight Corridors in increasing the rail share of freight.”
How to Answer
- Network History, zones, gauges.
- Projects Electrification, DFC, HSR.
- Challenges Share, safety, finance.
- Way forward Multimodal logistics.
GS Relevance
Frequently Asked Questions
When and where did the railways begin in India?
The first railway in India was opened on 16 April 1853 between Bombay and Thane, a distance of 34 kilometres. The network then spread quickly in the colonial period, and today Indian Railways has about 70,000 route kilometres and is one of the largest rail systems in the world.
What are the gauges of Indian Railways?
Indian Railways has three gauges: broad gauge of 1.676 metres, which forms the great majority of the network, metre gauge of 1.0 metre, and narrow gauge of 0.762 or 0.610 metre. Metre gauge lines are being converted to broad gauge under the Unigauge project.
What are Dedicated Freight Corridors?
Dedicated Freight Corridors are separate railway tracks for goods trains. The Western corridor runs from the Jawaharlal Nehru Port near Mumbai to Dadri near Delhi, and the Eastern corridor from Ludhiana towards Dankuni near Kolkata. They free the existing lines for passenger trains and allow longer, heavier and faster freight trains.
Which mountain railways of India are UNESCO World Heritage Sites?
The Darjeeling Himalayan Railway, the Nilgiri Mountain Railway and the Kalka–Shimla Railway are the three mountain railways of India that are UNESCO World Heritage Sites. They are narrow gauge or metre gauge lines that climb steep hills through spirals, tunnels and bridges built in the colonial period.
What is the Konkan Railway?
The Konkan Railway is a 741-kilometre line between Roha in Maharashtra and Mangalore in Karnataka, opened in 1998. It runs along the west coast through the Western Ghats with several hundred bridges and tunnels, and was built by the Konkan Railway Corporation with the participation of the states along the route.
PYQ Practice — Statement Analysis
1 The first railway line in India ran between Bombay and Thane.
It opened in 1853.
2 Broad gauge in India is 1.676 metres wide.
It is the main gauge.
3 The Konkan Railway runs along the east coast.
It runs along the west coast.
4 The Darjeeling Himalayan Railway is a UNESCO World Heritage Site.
It was recognised in 1999.
Past Mains Questions on This Topic
This topic comes under Transport and Communication. UPSC Mains questions asked on the matching syllabus topic, year-wise with marks:
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