Chapter 7: Infrastructure: Engine of India's Development — Class 7 Social Science
Social Science · 20 chapters
Summary, key terms, important questions and a practice quiz with AI diagnosis for each.
Chapter 7: Infrastructure: Engine of India's Development
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What is physical infrastructure?
Summary
This chapter explains physical infrastructure — the vast network of tangible structures that keep cities and villages functioning — and how it has transformed India. It includes transportation systems (roads, bridges, railways), utilities (electricity, water), communication networks, and energy infrastructure. Through the journeys of characters like Rishabh and the farmer Satish, the chapter shows how infrastructure connects like pieces of a puzzle to enable safe, timely travel and the movement of goods. It surveys transportation infrastructure: India's road and highway network (the second-largest in the world), with marvels like the Dhola Sadiya Bridge and Meghalaya's living root bridges; the railway network, introduced by the British in 1853 and now the fourth-largest in the world, moving toward full electrification; metro systems; air transport with its many airports; and shipping and ports. It then explores communication infrastructure — cables, towers, satellites and data centres — tracing how communication evolved from pigeons and runners to telegraphs, telephones, the internet and 5G, and highlighting the Indian scientist J.C. Bose, who pioneered wireless transmission. It draws on Kautilya's Arthashastra for ancient rules on roads and waterways and on penalties for damaging them, and stresses that maintaining public infrastructure is a collective responsibility, requiring safe, sustainable and inclusive design.
Physical infrastructureTransportation infrastructureCommunication infrastructureInfrastructure in the ArthashastraCollective responsibility
Key terms
Physical infrastructure
The vast network of tangible structures — transport, utilities, communication and energy systems — built to keep cities and villages functioning.
Social infrastructure
Facilities like schools, hospitals, police and fire stations, courts, parks and libraries that support the wellbeing and development of communities.
Golden Quadrilateral
A major highway network connecting four of India's major cities — Delhi, Mumbai, Chennai and Kolkata.
Living root bridges
Natural bridges crafted by the Khasi and Jaintia tribes of Meghalaya by guiding the roots of rubber trees across streams over many years.
E-governance
The use of communication technologies by government to deliver services to citizens, such as the DigiLocker app for storing documents.
Patent
A right granted by the government to be the only person or company allowed to make, sell or use an invention for a certain number of years.
Important questions
THINK ABOUT IT
LET’S EXPLORE
THINK ABOUT IT
THINK ABOUT IT
THINK ABOUT IT
LET’S EXPLORE
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Physical infrastructure
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The vast network of tangible structures — transport, utilities, communication and energy systems — built to keep cities and villages functioning.
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Practice quiz · Infrastructure: Engine of India's Development
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