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National Income Trends And Sectoral Contribution — Syllabus

Telangana Open School (TOSS) · Class 12 · Economics

What National Income Trends And Sectoral Contribution covers in Telangana Open School (TOSS) Class 12 Economics: 3 topics, for the 2026-27 session.

50 questions30 flashcards4 concepts

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3 Topics · Telangana Open School (TOSS) Class 12 Economics · 2026-27

Topics in National Income Trends And Sectoral Contribution

1

History of National Income Accounting in India

  • Dadabhai Nauroji was the first to estimate India's national income in 1867–68, placing per capita income at ₹20.
  • Other early estimators include William Digby (1899), Shirras (1911, 1922), Shah and Khambatta (1921), and R.C. Desai (1931–40).
  • Prof. V.K.R.V. Rao made the first scientific estimate in 1931–32, dividing the economy into sectors like agriculture and corporate.
2

Trends in National Income and Per Capita Income

  • National income and per capita income have steadily increased since 1950–51.
  • In 1950–51, national income was ₹4,48,483 crores (constant prices) and rose to ₹1,25,19,976 crores in 2021–22.
  • Per capita income grew from ₹12,493 in 1950–51 to ₹91,481 in 2021–22 (constant prices).
3

Sectoral Contribution to National Income

  • The economy is divided into three sectors: Primary (agriculture, mining), Secondary (manufacturing, construction), and Tertiary (services).
  • In 1950–51, the primary sector dominated with 57.2% share in national income.
  • By 2020–21, the tertiary (service) sector became the largest contributor with 53.89% share.

Key Concepts

Central concept: National Income

History of National Income Accounting in IndiaTrends in National Income and Per Capita IncomeSectoral Contribution to National IncomePrimary SectorSecondary SectorTertiary SectorEconomic Structural Change

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Frequently Asked Questions

What are the important topics in National Income Trends And Sectoral Contribution for Telangana Open School (TOSS) Class 12 Economics?
Key topics in National Income Trends And Sectoral Contribution include History of National Income Accounting in India, Trends in National Income and Per Capita Income, Sectoral Contribution to National Income. Study these first, then practise questions on each for the Telangana Open School (TOSS) Class 12 board exam.
How should I revise National Income Trends And Sectoral Contribution for the Telangana Open School (TOSS) Class 12 board exam?
Learn the core ideas first, then work through the 50 practice questions on National Income Trends And Sectoral Contribution. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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