Transport and Communication (India: People and Economy), Class 12

What Transport and Communication is about

Weightage: India: People and Economy, Unit IV: Transport, Communication and International Trade carries 7 of the 70 theory marks; this chapter shares them with International Trade.Source: CBSE Geography (029) syllabus 2026-27, course structure

Key concepts

Road transport in India

NCERT section Land Transport; Road Transport

Background: pathways and unmetalled roads were used since ancient times; metalled roads and railways came with development; ropeways, cableways and pipelines serve special needs.

• Sher Shah Suri built the Shahi (Royal) road from the Indus Valley to the Sonar Valley in Bengal; renamed the Grand Trunk (GT) road in British times (Calcutta-Peshawar); now it runs from Amritsar to Kolkata.
• Modern road transport was limited before World War II. The first serious attempt was the Nagpur Plan (1943), not implemented due to lack of coordination between princely states and British India. After Independence, a twenty-year road plan (1961) was introduced, but roads remained concentrated around urban centres; rural and remote areas had least connectivity.

Size and role:

• India has one of the largest road networks, about 62.16 lakh km (2020-21).
• Roads carry about 85 per cent of passenger and 70 per cent of freight traffic; best for shorter distances.

Classification (for construction and maintenance): National Highways (NH), State Highways (SH), Major District Roads and Rural Roads.

Table 7.1 (2020): NH 1,36,440 km; SH 1,76,818 km; other roads 59,02,539 km; total 62,15,797 km.

Worked example

Describe the role of roads in the economic development of India. (5 marks)

Try it first, then show the solutionSolution

1. India has one of the largest road networks (about 62.16 lakh km), carrying about 85 per cent of passenger and 70 per cent of freight traffic.
2. National Highways (2 per cent of length, 40 per cent of traffic) link state capitals, cities, ports and junctions, and serve defence movement.
3. NHAI projects like the Golden Quadrilateral and North-South and East-West corridors cut time, distance and cost between metros and regions; Bharatmala adds economic corridors.
4. Rural roads (about 80 per cent of length) and PMGSY link villages to markets and services; district and state roads connect district headquarters and towns.
5. Border roads integrate remote areas and aid defence; international highways promote links with neighbours.

Answer: Roads move most passengers and freight, link markets, villages and borders, and drive economic integration.

National Highways and NHAI projects

NCERT section National Highways; National Highways Development Projects

National Highways: main roads built and maintained by the Central Government for inter-state transport and movement of defence personnel and material in strategic areas; they connect state capitals, major cities, important ports and railway junctions.

• Length grew from 19,700 km (1951) to 1,36,440 km (2020).
• Only about 2 per cent of road length but 40 per cent of road traffic.

NHAI (National Highways Authority of India): operationalised in 1995; an autonomous body under the Ministry of Surface Transport; responsible for development, maintenance and operation of NHs and improving their quality.

Major projects:

• Golden Quadrilateral: 5,846 km, 4/6-lane high-density corridor linking Delhi-Mumbai-Chennai-Kolkata, cutting time, distance and cost among mega cities.
• North-South Corridor: Srinagar to Kanniyakumari (including the Cochin-Salem spur), 4,076 km.
• East-West Corridor: Silchar (Assam) to Porbandar (Gujarat), 3,640 km.
• Bharatmala Pariyojana: about 26,000 km of economic corridors, which with GQ and NS-EW corridors will carry most road freight; also ring roads, bypasses and elevated corridors to decongest cities.

Worked example

Describe the major National Highway development projects of NHAI. (3 marks)

Try it first, then show the solutionSolution

1. Golden Quadrilateral: 5,846 km, 4/6-lane corridor connecting Delhi, Mumbai, Chennai and Kolkata.
2. North-South Corridor: Srinagar to Kanniyakumari (with the Cochin-Salem spur), 4,076 km; East-West Corridor: Silchar to Porbandar, 3,640 km.
3. These reduce time, distance and cost of movement; Bharatmala Pariyojana adds about 26,000 km of economic corridors.

Answer: Golden Quadrilateral, North-South and East-West corridors, and Bharatmala economic corridors.

State, district, rural and other roads

NCERT section State Highways; District Roads; Rural Roads; Other Roads

State Highways: built and maintained by state governments; join state capitals with district headquarters and important towns; connected to NHs.

District roads: link district headquarters with other important nodes in the district.

Rural roads: vital links in rural areas; about 80 per cent of total road length; density varies with terrain (low in hilly, plateau and forested areas). Built under schemes like the Pradhan Mantri Gram Sadak Yojana.

Other roads: border roads and international highways.

• Border Roads Organisation (BRO): set up in May 1960 to accelerate economic development and strengthen defence preparedness through strategic roads along the northern and north-eastern boundary; a premier construction agency.
• Built high-altitude roads joining Chandigarh with Manali and Leh, at an average altitude of 4,270 m; also does snow clearance.
• Atal Tunnel (9.02 km): the world's longest highway tunnel, built by BRO in the Pir Panjal range at about 3,000 m; connects Manali to Lahaul-Spiti all year (earlier cut off for about 6 months by snow).
• International highways: promote harmonious relations with neighbours by providing effective links (e.g. Delhi-Lahore bus, Aman Setu between Baramula and Muzaffarabad).

Worked example

What is the role of the Border Roads Organisation? (3 marks)

Try it first, then show the solutionSolution

1. Set up in May 1960 to accelerate economic development and strengthen defence preparedness through strategic roads along the northern and north-eastern borders.
2. It built high-altitude roads joining Chandigarh with Manali and Leh (average 4,270 m) and does snow clearance in high areas.
3. It built the 9.02 km Atal Tunnel, connecting Manali with Lahaul-Spiti throughout the year.

Answer: Building and maintaining strategic border roads, clearing snow and building tunnels like Atal Tunnel.

Rail transport

NCERT section Rail Transport

Importance: one of the longest networks in the world; moves freight and passengers and aids economic growth. Mahatma Gandhi said the railways brought people of diverse cultures together for the freedom struggle.

• Introduced in 1853: Bombay to Thane, 34 km.
• Largest government undertaking; length 67,956 km (2019-20); divided into 17 zones to ease pressure on centralised management (Table 7.2: e.g. Central-Mumbai CST, Northern-New Delhi, North East Frontier-Maligaon, South Central-Secunderabad, South Western-Hubli, Metro Railway-Kolkata).

Gauges:

Gauge	Width	Length (2019-20)
Broad	1.676 m	63,950 km
Metre	1 m	2,402 km
Narrow	0.762 m or 0.610 m	1,604 km (mostly hilly areas)

A programme converts metre and narrow gauge to broad gauge; steam engines replaced by diesel and electric, increasing speed and haulage and improving station environment.

Metro rail has revolutionised urban transport; with CNG buses it helps control air pollution.

Distribution: colonial railways served towns, raw material areas, plantations, hill stations and cantonments, mainly for exploiting resources; after Independence, routes extended to other areas. Network is less dense in hill states, the north-east, central India and Rajasthan.

Konkan Railway (1998): 760 km from Roha (Maharashtra) to Mangaluru (Karnataka); an engineering marvel crossing 146 rivers and streams, nearly 2,000 bridges and 91 tunnels, including Asia's largest tunnel (~6.5 km); partners: Maharashtra, Goa, Karnataka.

Worked example

Give a detailed account of the development of railways in India and their importance. (5 marks)

Try it first, then show the solutionSolution

1. Introduced in 1853 between Bombay and Thane (34 km); now 67,956 km (2019-20), the largest government undertaking, divided into 17 zones.
2. Three gauges: broad (1.676 m), metre (1 m) and narrow (0.762 or 0.610 m, in hills); conversion to broad gauge and replacement of steam by diesel and electric engines raised speed and capacity.
3. Colonial lines served resource exploitation; after Independence routes extended, notably the Konkan Railway (1998), 760 km from Roha to Mangaluru across 146 rivers and 91 tunnels.
4. Metro rail and CNG buses improve urban transport and reduce air pollution.
5. Railways remain the main transport of the masses, carrying freight and passengers and, as Gandhi said, uniting diverse peoples; density is lower in hills, the north-east, central India and Rajasthan.

Answer: From 1853's 34 km to a 67,956 km network modernised by gauge conversion, electrification, Konkan Railway and metros; vital for masses and economy.

Water transport: inland and oceanic

NCERT section Water Transport; Inland Waterways; Oceanic Routes

Water transport is the cheapest mode, best for heavy and bulky material, fuel-efficient and eco-friendly. Two types: inland and oceanic.

Inland waterways: the chief mode before railways, but declined due to road and rail competition and diversion of river water for irrigation. India has 14,500 km of navigable waterways (rivers, canals, backwaters, creeks), contributing about 1 per cent of transport.

National waterways (Table 7.3):

• NW 1: Prayagraj-Haldia (1,620 km) on the Ganga; navigable by mechanical boats up to Patna, ordinary boats up to Haridwar; three parts: Haldia-Farakka (560 km), Farakka-Patna (460 km), Patna-Prayagraj (600 km).
• NW 2: Sadiya-Dhubri (891 km) on the Brahmaputra; navigable by steamers up to Dibrugarh.
• NW 3: Kottapuram-Kollam (205 km): west coast canal with Champakara and Udyogmandal canals (Kerala).
• NW 4: stretches of Godavari and Krishna with the Kakinada-Puducherry canals (1,078 km).
• NW 5: stretches of Brahmani, Matai river, delta channels of Mahanadi and Brahmani, and East Coast canals (588 km).
• Inland Waterways Authority (1986) develops and regulates NWs; the National Waterways Act, 2016 declared 111 NWs (including the five above); 10 more waterways identified for upgrading.
• Kerala's backwaters (kayal) provide cheap transport and attract tourists; the Nehru Trophy Boat Race (Vallamkali) is held there.

Oceanic routes: coastline of about 7,517 km including islands; 12 major and 200 minor ports; about 95 per cent of foreign trade by volume and 70 per cent by value moves by sea; also link the islands with the mainland.

Worked example

Why did inland waterways decline in India? Name NW 1 and NW 2. (3 marks)

Try it first, then show the solutionSolution

1. Inland waterways were the chief transport before railways but faced tough competition from road and rail.
2. Diversion of river water for irrigation made large stretches non-navigable; they now contribute only about 1 per cent of transport.
3. NW 1: Ganga, Prayagraj-Haldia (1,620 km); NW 2: Brahmaputra, Sadiya-Dhubri (891 km).

Answer: Road-rail competition and water diversion caused decline; NW 1 Ganga (Prayagraj-Haldia), NW 2 Brahmaputra (Sadiya-Dhubri).

Air transport and pipelines

NCERT section Air Transportation; Oil and Gas Pipelines

Air transport: the fastest mode; reduces distances by cutting travel time; essential for vast India with diverse terrain and climate.

• Began in 1911 with airmail over 10 km between Prayagraj and Naini; real growth after Independence.
• Airport Authority of India: safe, efficient air traffic and aeronautical communication services in Indian airspace.
• UDAN (Ude Desh ka Aam Nagrik): a first-of-its-kind Regional Connectivity Scheme by the Ministry of Civil Aviation to make flying affordable and encourage flights on regional and remote routes through policies and incentives.
• Pawan Hans: helicopter service in hilly areas, used by tourists in the north-east, and for the petroleum sector and tourism.

Oil and gas pipelines: the most convenient and efficient mode for liquids and gases over long distances; even solids as slurry.

• Oil India Limited (OIL) (Ministry of Petroleum and Natural Gas; incorporated 1959): exploration, production and transport of crude oil and gas. Built Asia's first cross-country pipeline (1,157 km) from Naharkatiya (Assam) to Barauni (Bihar), extended to Kanpur in 1966.
• GAIL (India) Ltd. (1984): transport, processing and marketing of natural gas. Its first 1,700 km Hazira-Vijaipur-Jagdishpur (HVJ) pipeline linked Mumbai High and Bassein gas fields with fertiliser, power and industrial complexes in western and northern India.
• Gas pipeline network grew from 1,700 km to 18,500 km, expected to exceed 34,000 km as a Gas Grid including the north-east.

Worked example

Discuss the advantages of pipeline transport and name two important pipelines. (3 marks)

Try it first, then show the solutionSolution

1. Pipelines are the most convenient and efficient way to move liquids and gases over long distances, and even solids as slurry.
2. OIL built Asia's first cross-country pipeline (1,157 km) from Naharkatiya (Assam) to Barauni (Bihar), extended to Kanpur in 1966.
3. GAIL's 1,700 km HVJ pipeline links Mumbai High and Bassein gas fields to fertiliser, power and industrial complexes; the gas network now exceeds 18,500 km.

Answer: Efficient long-distance carriage of liquids and gases; e.g. Naharkatiya-Barauni and HVJ pipelines.

Communication networks

NCERT section Communication Networks

Evolution: messages were once sent by drums, hollow logs, smoke or fire signals, fast runners, and animals (horses, camels, dogs, birds); means of communication were also means of transport. The post office, telegraph, printing press, telephone and satellites made communication faster; science and technology brought a revolution.

Personal communication: the internet is the most effective and advanced; widely used in urban areas; enables e-mail, access to knowledge, e-commerce and money transactions; a huge warehouse of data at comparatively low cost.

Mass communication:

• Radio: started in 1923 by the Radio Club of Bombay; brought under government control in 1930 (Indian Broadcasting System), renamed All India Radio (1936) and Akashwani (1957); broadcasts information, education and entertainment, and special bulletins (e.g. parliament sessions).
• Television: the most effective audio-visual medium; began in the national capital in 1959; more centres after 1972; delinked from AIR in 1976 as Doordarshan; after INSAT-1A, Common National Programmes extended to backward and remote rural areas.

Satellite communication: satellites are communication means in themselves and regulate others; give a continuous and synoptic view of large areas for weather forecasting, monitoring natural calamities and border surveillance.

• INSAT (1983): multi-purpose system for telecommunication, meteorology and other data.
• IRS: became operational with IRS-1A (March 1988) launched from Baikonur (Russia); India developed its own PSLV; satellites collect data in several spectral bands; the National Remote Sensing Centre (Hyderabad) acquires and processes data, useful for managing natural resources.

Worked example

Distinguish between INSAT and IRS satellite systems. (3 marks)

Try it first, then show the solutionSolution

1. INSAT, established in 1983, is a multi-purpose system for telecommunication, meteorological observation and various data and programmes (e.g. extending Doordarshan's national programmes).
2. IRS became operational with IRS-1A in March 1988; its satellites collect data in several spectral bands for resource management.
3. IRS data are received and processed by the National Remote Sensing Centre, Hyderabad; India launches satellites with its own PSLV.

Answer: INSAT serves communication and weather; IRS serves remote sensing for resource management.

Transport and Communication in real life

Each concept, met in an everyday situation. Read the situation, answer the question in your own words, then compare with the model answer. The one-line hook is what to remember.

Topics in this chapter

• Rail Transport in India
• Water Transport in India
• Communication Networks in India
• Air Transport and Oil and Gas Pipelines in India
• Road Transport in India: Classification, Highways and Projects

Transport and Communication: key facts

Roads

62.16 lakh km; 85% passengers, 70% freight; NH 1,36,440 km (2% length, 40% traffic)

Nagpur Plan 1943; 20-year plan 1961.

Road classes

National Highways; State Highways; Major District Roads; Rural Roads (80% of length); Border Roads; International Highways

NHAI 1995; BRO May 1960.

NHAI corridors

$GQ5,846km(Delhi-Mumbai-Chennai-Kolkata);N-S4,076km(Srinagar-Kanniyakumari);E-W3,640km(Silchar-Porbandar);Bharatmala26,000km$

Cut time, distance, cost.

Railways

$1853Bombay-Thane34km;67,956km;17zones;broad1.676m,metre1m,narrow0.762/0.610m$

Konkan Railway 1998, 760 km.

Inland waterways

14,500 km navigable (1% of transport); NW1 Ganga Prayagraj-Haldia 1,620 km; NW2 Brahmaputra Sadiya-Dhubri 891 km; NW3 Kottapuram-Kollam 205 km

IWAI 1986; 111 NWs (2016).

Ocean routes

Coastline ~7,517 km; 12 major + 200 minor ports; 95% trade by volume, 70% by value

Also link islands.

Air

1911 airmail Prayagraj-Naini (10 km); AAI; UDAN; Pawan Hans helicopters

Fastest mode.

Pipelines

OIL (1959): Naharkatiya-Barauni 1,157 km, to Kanpur 1966; GAIL (1984): HVJ 1,700 km; gas grid 18,500 km to 34,000+ km

Liquids, gases, slurry.

Radio and TV

Radio 1923 (Radio Club of Bombay); AIR 1936; Akashwani 1957; TV 1959; Doordarshan 1976

INSAT-1A extended programmes.

Satellites

INSAT 1983 (communication, weather); IRS-1A March 1988; PSLV; NRSC Hyderabad

Weather, calamities, surveillance, resources.

How the board asks Transport and Communication

The question patterns to expect, and the method that works for each.

Tricks to remember Transport and Communication

Short memory aids. Say each one aloud once, then use it on a question the same day.

• Corridors

  "GQ 5846, NS 4076, EW 3640".

  Use it when: Corridor lengths.

• Radio timeline

  "23-30-36-57": start, government, AIR, Akashwani.

  Use it when: Radio dates.

• National waterways

  "1 Ganga, 2 Brahmaputra, 3 Kerala canal, 4 Godavari-Krishna, 5 Brahmani-Mahanadi".

  Use it when: NW list.

• Gauges

  "Broad 1.676, Metre 1, Narrow 0.762/0.610".

  Use it when: Gauge widths.

Transport and Communication: board-level solved questions

Ordered from board level to HOTS. Cover the solution, write your own, then compare step by step.

Case-study practice (Section E style)

Read the situation, then answer every part. In the board paper this is a 3-mark question split into 1 + 1 + 1 marks.

Where the marks are

How a typical answer is split into step marks. Show every step: a right final answer alone rarely earns full marks.

Where students lose marks in Transport and Communication

The slips examiners see most often, and what to write instead.

• ✗Mistake: Confusing NW 1 and NW 2

  Two big rivers.

  ✓Do this: NW1: Ganga, Prayagraj-Haldia; NW2: Brahmaputra, Sadiya-Dhubri.

  Usually costs: 1 mark.

• ✗Mistake: Wrong NHAI corridor end points

  Several corridors.

  ✓Do this: N-S: Srinagar-Kanniyakumari; E-W: Silchar-Porbandar; GQ: Delhi-Mumbai-Chennai-Kolkata.

  Usually costs: 1 mark.

• ✗Mistake: Mixing up radio dates

  Several renamings.

  ✓Do this: 1923 start, 1930 government, 1936 AIR, 1957 Akashwani.

  Usually costs: 1 mark.

• ✗Mistake: Answering with world transport facts

  Two chapters with the same name.

  ✓Do this: This chapter is about India; world routes belong to the Fundamentals of Human Geography chapter.

  Usually costs: Relevance.

NCERT exercise guide: Transport and Communication

What each exercise in the NCERT chapter tests, how to approach it, and a question of the same kind solved step by step. Questions here are written in our own words.

Practice questions on Transport and Communication

Write each answer on paper first. Open the hint only if you are stuck, and the answer only when you have finished.

1. Q1 · 1 mark · MCQBoard level

   The first radio programme in India was broadcast in:
   (a) 1911
   (b) 1936
   (c) 1927
   (d) 1923

   Hint

   Radio Club of Bombay.

   Answer

   (d).

2. Q2 · 1 mark · MCQBoard level

   The first railway line in India ran between:
   (a) Calcutta and Delhi
   (b) Bombay and Thane
   (c) Madras and Arcot
   (d) Roha and Mangaluru

   Hint

   1853, 34 km.

   Answer

   (b).

3. Q3 · 1 mark · Assertion-reasonHarder board level

   Assertion (A): Water transport is suitable for carrying heavy and bulky material.
   Reason (R): It is the cheapest, fuel-efficient and eco-friendly mode of transport.
   Choose (a)-(d).

   Hint

   Cost.

   Answer

   (a) Both are true and R explains A.

4. Q4 · 1 mark · MCQHarder board level

   Asia's first cross-country pipeline was built from:
   (a) Hazira to Jagdishpur
   (b) Naharkatiya to Barauni
   (c) Mumbai High to Vijaipur
   (d) Digboi to Kanpur

   Hint

   Oil India Limited.

   Answer

   (b).

5. Q5 · 3 marks · Short answerBoard level

   What do you mean by communication? Name the two types of communication systems with examples. (3 marks)

   Hint

   Personal and mass.

   Answer

   Communication is the exchange of words, messages, ideas and views between places or people through various means. Personal communication: the internet (e-mail, e-commerce, online transactions). Mass communication: radio (Akashwani), television (Doordarshan) and satellites (INSAT, IRS) that reach large audiences.

6. Q6 · 3 marks · Short answerHOTS / competency

   Suppose a remote hill district has very few rural roads, and the roads that exist get worse farther from the town. Using the chapter, explain why and suggest what can help. (3 marks)

   Hint

   Terrain, urban concentration.

   Answer

   Rural road density depends on terrain; it is very low in hilly, plateau and forested areas, and roads have historically concentrated around urban centres, leaving remote areas poorly connected, so quality declines away from towns. Rural road programmes like the Pradhan Mantri Gram Sadak Yojana, and in border areas the BRO, can improve connectivity; helicopter services like Pawan Hans and UDAN flights help where roads are hard to build.

7. Q7 · 3 marks · Short answerHarder board level

   Explain the satellite communication system of India. (3 marks)

   Hint

   INSAT, IRS.

   Answer

   Satellites give a continuous, synoptic view of large areas, used for weather forecasting, monitoring natural calamities and border surveillance. INSAT (1983) is a multi-purpose system for telecommunication and meteorology. IRS, operational since IRS-1A (March 1988), collects data in spectral bands, processed by the National Remote Sensing Centre, Hyderabad, for resource management; India launches satellites with its own PSLV.

8. Q8 · 5 marks · Long answerHOTS / competency

   Describe the inland waterways of India and their present status. (5 marks)

   Hint

   NWs and authority.

   Answer

   India has 14,500 km of navigable waterways (rivers, canals, backwaters, creeks), but they carry only about 1 per cent of transport, having declined due to road and rail competition and diversion of river water for irrigation. National Waterways: NW1 Ganga, Prayagraj-Haldia (1,620 km); NW2 Brahmaputra, Sadiya-Dhubri (891 km); NW3 Kottapuram-Kollam (205 km); NW4 Godavari-Krishna with Kakinada-Puducherry canals (1,078 km); NW5 Brahmani-Mahanadi delta and East Coast canals (588 km). The Inland Waterways Authority (1986) develops them; the National Waterways Act 2016 declared 111 NWs. Kerala's backwaters provide cheap transport and tourism (Nehru Trophy Boat Race).

Test your recall

Answer in your head or on paper first, then open the card. Pulling an answer out of memory makes it stick far better than re-reading.

1. 1.What share of road traffic do National Highways carry?Show answer

   About 40 per cent, though they are only about 2 per cent of road length.

2. 2.When was the NHAI operationalised?Show answer

   In 1995.

3. 3.What is the length of the Konkan Railway?Show answer

   760 km, from Roha to Mangaluru.

4. 4.What share of India's foreign trade by volume moves through ocean routes?Show answer

   About 95 per cent (70 per cent by value).

5. 5.When did air transport begin in India?Show answer

   In 1911, with airmail between Prayagraj and Naini.

6. 6.When did Doordarshan get a separate identity?Show answer

   In 1976.

Quick revision checklist

The night before the exam: can you do each of these without looking?

• ☐Can you give India's road length and share of traffic?
• ☐Can you name the four road classes and their functions?
• ☐Can you state the NHAI corridors with end points and lengths?
• ☐Can you explain the role of BRO and Atal Tunnel?
• ☐Can you give railway history, zones and gauges?
• ☐Can you describe Konkan Railway?
• ☐Can you list five national waterways?
• ☐Can you describe ocean routes, air transport and UDAN?
• ☐Can you name India's major pipelines?
• ☐Can you trace the history of radio, TV and satellites?

Transport and Communication: frequently asked questions