Study Notes
Class 11–12 Commerce – General Knowledge
Topic: “India & the World”
These notes are written for competitive‑exam preparation (e.g., UPSC, BPSC, RBI‑IIT, etc.). They contain rigorous explanations, key derivations, important formulae, and a hard‑level practice problem.
Table of Contents
- India: Geography & Demographics
- India’s Political & Economic System
- Key Economic Indicators & Their Calculations
- India & International Organizations
- Tricky Points & Common Misconceptions
- Hard Practice Question
1. India: Geography & Demographics
| Item | Detail |
|---|---|
| Area | 3.287 million km² (7th largest in the world) |
| Population | ≈ 1.4 billion (2023) – 2nd largest after China |
| Population Density | ~ 423 people/km² (high relative to world average 58) |
| Major Rivers | Ganga, Yamuna, Brahmaputra, Indus, Godavari, Krishna, Narmada, etc. |
| Mountain Ranges | Himalayas (north), Eastern Ghats, Western Ghats |
| Climate | Tropical in the south; temperate in the north; monsoon‑driven |
| Key Ports | Mumbai, Chennai, Kolkata, Visakhapatnam, Paradip, Cochin |
| Time Zones | IST (UTC +5:30) – only one time zone in a 4,000 km expanse |
Tricky Point – India’s “thirty‑two” states + 8 UTs are often mis‑counted because the list changes when states are bifurcated (e.g., Telangana in 2014).
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2. India’s Political & Economic System
| Feature | Description |
|---|---|
| Constitution | 1950 – 14th Amendment (2005) |
| Federal Structure | 28 states + 8 Union Territories; 3 tiers of government |
| Parliament | Bicameral: Lok Sabha (lower house) + Rajya Sabha (upper house) |
| Executive | President (head of state), Prime Minister (head of government) |
| Judiciary | Supreme Court (highest), High Courts (state level) |
| Economic System | Mixed economy: public sector enterprises + private sector + emerging MSMEs |
Key Economic Sectors
| Sector | 2022 Share of GDP | Notes |
|---|---|---|
| Agriculture | ~ 17 % | Dominated by smallholders, 60 % of workforce |
| Industry | ~ 26 % | Manufacturing + IT/ITeS growing rapidly |
| Services | ~ 57 % | Largest contributor (finance, telecom, tourism, etc.) |
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3. Key Economic Indicators & Their Calculations
3.1. Gross Domestic Product (GDP)
| Metric | Formula | Example |
|---|---|---|
| Nominal GDP | Sum of value added at current prices | ₹25 trn (2022) |