Ancient India — Indus Valley Civilisation
🟢 Lite — Quick Review (1h–1d)
Rapid summary for last-minute revision before your exam.
The Indus Valley Civilisation (IVC) — also called the Harappan Civilisation — was one of the world’s earliest and most sophisticated urban civilisations (c. 3300–1300 BCE), contemporaneous with ancient Egypt and Mesopotamia. It covered an area larger than ancient Egypt and Mesopotamia combined.
Key Facts for RPSC RAS:
- The IVC flourished in the Indus-Ghaggar-Hakra river system — which some scholars identify with the Saraswati River of the Vedas.
- Major sites: Harappa (Punjab, Pakistan), Mohenjo-daro (Sindh, Pakistan), Dholavira (Gujarat, India), Rakhigarhi (Haryana, India), Lothal (Gujarat, India).
- The IVC had planned cities with grid-pattern streets, sophisticated drainage systems, standardised weights and measures, and apparent script.
- The Indus Script remains undeciphered — one of the great unsolved puzzles of archaeology.
- Decline theories: Climate change (monsoon failure), Aryan invasion (now largely discredited), river course change (Saraswati drying up).
⚡ Exam tip: Major sites, town planning features, trade connections, and the undeciphered script are frequently asked.
🟡 Standard — Regular Study (2d–2mo)
Standard content for students with a few days to months.
Overview and Chronology
Three Phases of the IVC
1. Early Harappan (Early Phase): c. 3300–2600 BCE
- Rural settlements in the Indus-Ghaggar-Hakra region
- Beginning of urbanisation
- Evidence of trade with Mesopotamia (Sumer)
2. Mature Harappan (Peak Phase): c. 2600–1900 BCE
- Full urban civilisation — grid-pattern cities, drainage, standardised bricks
- Trade with Mesopotamia, Dilmun (Bahrain), Magan (Oman)
- Greatest extent and sophistication
3. Late Harappan (Decline Phase): c. 1900–1300 BCE
- Gradual abandonment of major cities
- Spread of Harappan culture to peripheral areas
- Possible integration with post-Harappan cultures
Major Sites
Harappa (Punjab, Pakistan)
Discovery: First excavated by Sir John Marshall (1921) Location: On the banks of the Ravi River, Punjab, Pakistan Significance: Gave the civilisation its name — “Harappan Civilisation”
Key features:
- Citadel mound (elevated area) with administrative buildings
- Lower town — residential area with grid-pattern streets
- Granaries — large brick structures for grain storage (disputed purpose)
- Cemetery (R37) — systematic burial practices
Mohenjo-daro (Sindh, Pakistan)
Discovery: R.D. Banerji (1922) Location: On the banks of the Indus River, Sindh, Pakistan Significance: Most well-preserved Harappan city — called the “Mound of the Dead”
Key features:
- Great Bath (12m x 7m) — most famous structure; may have been used for ritual bathing
- Citadel mound — elevated platform with major public buildings
- Assembly hall — possibly a council chamber
- Drainage system — most sophisticated of any ancient civilisation; covered drains beneath every street
- Standardised brick sizes — uniform 1:2:4 ratio
Dholavira (Gujarat, India)
Excavation: R.S. Bist and later ASI team (2015-2022) Location: Rann of Kutch, Gujarat Significance: One of the largest IVC sites in India
Key features:
- Multistorey buildings — indicates sophisticated construction
- Stadium — unique to Dholavira; purpose unknown
- Water reservoirs — sophisticated rainwater harvesting and storage system
- Bailey walls — step-well-like construction technique
- Unique name board — stone letters spelling “DA” found at the site
Rakhigarhi (Haryana, India)
Location: Hisar district, Haryana — on the Ghaggar-Hakra River Significance: Largest IVC site in India; predates Mohenjo-daro in some phases
Discovery: Excavated by Vashisht and team (1963 onward) Key findings:
- Possible evidence of a differential burial practice — some bodies may have been secondarily buried (coffin)
- Rural-urban continuum observed
Lothal (Gujarat, India)
Excavation: R.S. Bist (1954-1961) Location: Near Bhaskar river, Gujarat — coastal site Significance: Major port of the IVC; evidence of maritime trade
Key features:
- Dockyard — world’s oldest dock; could handle ships of 60-70 tonnes
- Embankment — river embankment to control flooding
- Bead-making factory — semi-precious stone (agate, carnelian) bead manufacturing
- Bath — similar to Mohenjo-daro’s Great Bath
Town Planning
Urban Design — The Harappan Standard
The IVC shows remarkable standardisation of urban planning:
- Grid Pattern: Streets at right angles — most cities follow a north-south, east-west grid
- Standardised Bricks: Uniform brick dimensions (1:2:4 ratio) throughout the civilisation — regardless of location
- Drainage System: Covered underground drains beneath every street; inspection chambers at regular intervals
- Well-planned Houses: Rectangular rooms, often with their own bathing area and latrine
- Citadel and Lower Town: Distinction between the raised administrative/citadel area and the residential lower town
Economy and Trade
Trade
Domestic Trade:
- Agricultural surplus → stored in granaries → exchanged through trade
- Major goods: Grains, cotton textiles, pottery, beads
Foreign Trade:
- Mesopotamia: Cuneiform tablets from Ur and Uruk mention trade with “Meluhha” — likely the IVC. Goods: Carnelian beads, copper, timber
- Dilmun (Bahrain): Transit point for trade
- Magan (Oman): Source of copper and timber
- Trade goods exported: Carnelian beads, cotton textiles, copper items, terracotta toys
- Trade goods imported: Lapis lazuli (from Afghanistan), carnelian (from Gujarat), tin, gold
Weights and Measures
- Standardised weights: Binary and decimal system — 1, 2, 4, 8, 16… up to 12,800 units
- Ruler/Measuring rod: Shell and copper graduated scales found at Mohenjo-daro
- This standardisation suggests a sophisticated system of trade and administration
🔴 Extended — Deep Study (3mo+)
Comprehensive coverage for students on a longer study timeline.
The Indus Script
Characteristics
- Approximately 400+ signs — not a purely alphabetic script
- Written boustrophedon (alternating direction, like an ox ploughing a field)
- Found on seals (most common), tablets, and copper plates
- Average inscription: 5 signs — extremely short texts
Attempts to Decipher
- Sir John Marshall (1920s): Guessed phonetic values
- Iravatham Mahadevan (1970s): Tried to link to Tamil; identified 22 signs
- Asko Parpola (Finnish scholar): Links to Proto-Dravidian; most accepted but not proven
- Team of Rajesh Rao (2010s): Used computational analysis — supports a linguistic hypothesis
Current Consensus
The script is almost certainly a logosyllabic script (like Sumerian cuneiform or Egyptian hieroglyphs) but has not been deciphered. The failure to decipher is partly because the script is short, there is no bilingual inscription (like the Rosetta Stone), and the language family it belongs to is disputed.
Society, Religion, and Art
Was There a Ruler?
Evidence suggests no clear monarchical structure:
- No palaces comparable to Mesopotamia or Egypt
- No large royal tombs
- Possible governance by a council of merchants or elected leaders
- The uniformity of town planning suggests a centralised administrative system — possibly a theocratic or mercantile oligarchy
Art and Craft
- Terracotta figurines: Female figurines (possibly mother goddess); male figurines (worshippers or deities)
- Seals: Square or rectangular — depicting animals (unicorn is most common), deity, or script
- Bronze statues: The Dancing Girl of Mohenjo-daro (bronze, 4,500 years old) — world’s oldest bronze sculpture
- Stone sculptures: Very rare — the Priest-King torso from Mohenjo-daro
Religion
- Mother Goddess worship — prevalent; terracotta goddess figurines
- Pashupati Mahadeva — seal from Mohenjo-daro depicts a figure in a yogic posture surrounded by animals — possibly Proto-Shiva (Pasupati = Lord of Animals)
- Phallic worship (lingam) — some scholars suggest proto-Shaivism
- Tree worship — pipal tree motifs
- Bull (zebu) — most commonly depicted animal on seals
Decline — Theories
1. Climate Change (Most Accepted):
- Monsoon failure (~4,000 years ago) caused agricultural collapse
- Evidence from paleoclimate data in Rajasthan
- Saraswati River drying up (as rivers shifted)
2. Aryan Invasion (Discredited):
- Old theory — suggested Aryans invaded and destroyed the civilisation
- Archaeological evidence: No weapons, no destruction layers, no mass killings
- The decline was gradual, not sudden
3. River Course Change:
- The Ghaggar-Hakra (possibly Saraswati) shifted or dried
- Loss of water sources led to abandonment
4. Disease/Epidemic:
- Some scholars propose disease caused the decline
Sites in India — Special Focus
| Site | State | Significance |
|---|---|---|
| Rakhigarhi | Haryana | Largest IVC site in India |
| Dholavira | Gujarat | Best water management system |
| Lothal | Gujarat | World’s oldest dock |
| Kalibangan | Rajasthan | On Ghaggar-Hakra; first to show flooded fields |
| Banawali | Haryana | On Ghaggar-Hakra; early Harappan |
| Baror | Rajasthan | In northern Rajasthan; major late Harappan site |
Practice Questions for RPSC RAS
- Name the major sites of the Indus Valley Civilisation. Where are they located?
- Describe the town planning of a Harappan city.
- What evidence suggests the Indus Valley Civilisation had sophisticated trade networks?
- Why is the Indus script undeciphered? What are the main theories about its meaning?
- What are the main theories for the decline of the Indus Valley Civilisation?
Common Mistakes to Avoid
- Thinking the Indus script has been deciphered — it remains one of the great undeciphered scripts.
- Confusing Lothal with other sites — Lothal had the dockyard; not just a city.
- Overemphasising the “Aryan invasion” — it is largely discredited and not supported by archaeological evidence.
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