Study Notes: Indus Civilization - UPSC History

Indus Valley Civilization (Harappan Civilization)

This chapter covers one of the world's earliest urban cultures, contemporary to ancient Egypt and Mesopotamia. It flourished in the northwestern regions of South Asia.

1. Origins and Discovery

The civilization was unknown until its discovery in the 1920s by archaeologists like Daya Ram Sahni and R.D. Banerji.

John Marshall: First Director-General of ASI, coined the term "Indus Valley Civilization".
Geographical Extent: Covered approx. 1.3 million sq. km—larger than ancient Egypt and Mesopotamia combined.
- North: Manda (Jammu & Kashmir)
- South: Daimabad (Maharashtra)
- East: Alamgirpur (Uttar Pradesh)
- West: Sutkagen Dor (Pakistan-Iran border)

[IMAGE: Map showing major Harappan sites like Harappa, Mohenjo-daro, Lothal, Kalibangan, Dholavira]

2. Phases and Chronology

The civilization's development is divided into three main phases:

Early Harappan (c. 3300-2600 BCE)

Transition from rural to early urban life.
Precursor cultures: Hakra Ware, Amri-Nal, Kot Diji.
Beginning of trade networks and craft specialization.

Mature Harappan (c. 2600-1900 BCE)

Peak urban phase with planned cities.
Standardization in bricks, weights, and measures.
Widespread use of script and long-distance trade.

Late Harappan (c. 1900-1300 BCE)

Decline of urban features, abandonment of major cities.
Migration to new settlements in Gujarat, Punjab, and Haryana.
Material culture shows regionalization and simplification.

3. Society and Polity

The nature of Harappan society and political organization remains speculative due to the lack of deciphered records.

Social Structure: Likely not highly stratified like Mesopotamia. Absence of monumental palaces or temples suggests a more egalitarian society or a ruling class that did not glorify itself through massive architecture.
Political Authority: No clear evidence of kings, emperors, or priests. Theories suggest:
- Rule by a class of merchants.
- Oligarchy or council of elites.
- The remarkable uniformity in planning hints at a strong central authority or shared ideological system.
Dress and Ornaments: Cotton and wool garments; use of beads (carnelian, steatite), bangles, necklaces, and anklets by both men and women.

[IMAGE: Reconstruction of Harappan clothing and jewelry based on figurines and archaeological finds]

4. Urban Planning and Architecture

This is the most distinctive feature of the civilization, reflecting advanced engineering and municipal consciousness.

City Layout

Grid Pattern: Streets cut each other at right angles.
Citadel and Lower Town: Major cities divided into a raised western citadel (public buildings) and a larger eastern lower town (residential areas).

Building Materials

Standardized burnt bricks (ratio 4:2:1).
Extensive use of mud bricks for foundations and in smaller settlements.

Notable Structures

Great Bath (Mohenjo-daro): Watertight tank in citadel, possibly used for ritual purification.
Granaries: Found at Harappa, Mohenjo-daro; indicate state control over agricultural surplus.
Drainage System: Sophisticated network of covered drains, house drains connected to street drains.
Dockyard (Lothal): Brick-lined basin for berthing ships, evidence of maritime trade.

[VIDEO: "Harappan city planning and architecture animated explanation"]

5. Economy

The economy was diverse, supported by agriculture, animal husbandry, craft production, and extensive trade.

Agriculture

Crops: Wheat, barley, peas, lentils, sesame, mustard, cotton (first to cultivate). Dates and rice found in some regions.
Irrigation: Relied on seasonal floods. Canals found at sites like Shortughai.
Tools: Wooden ploughs, stone blades, terracotta plough models.

Animal Domestication

Cattle, buffalo, goat, sheep, pig, dog, cat, ass, camel.
No clear evidence of horse in the mature phase.

Crafts and Industries

Metallurgy: Copper, bronze, gold, silver. Used for tools, weapons, ornaments. Notable objects: bronze "Dancing Girl", copper carts.
Pottery: Wheel-made, red with black painted designs (geometric, animal, plant motifs).
Bead Making: Sophisticated drills used for carnelian, steatite, lapis lazuli.
Seal Making: Steatite seals with animal motifs and script, used for trade/identification.

Trade and Commerce

Internal Trade: Widespread distribution of raw materials (shell, stone, metal) across regions.
External Trade:
- Mesopotamia: Textiles, timber, lapis lazuli. Harappan seals found in Mesopotamian cities like Ur.
- Regions: Oman (copper), Afghanistan (tin, lapis lazuli), Gujarat (shell, agate).
Weights and Measures: Standardized binary system (1, 2, 4, 8, 16, 32... up to 12,800). Made of chert.

[IMAGE: Chart showing Harappan trade routes with Mesopotamia, Central Asia, and peninsular India]

6. Culture and Religion

Interpretations are based on seals, figurines, and structures, as the script is undeciphered.

Script and Language

Script: Pictographic, written right to left. About 400 signs. Not yet deciphered.
Language: Unknown. Proposals include Proto-Dravidian, Sanskrit, or a lost language.

Religious Practices

Mother Goddess: Numerous terracotta female figurines suggest a fertility cult.
Proto-Shiva/Pashupati Seal: Figure in yogic posture surrounded by animals, possibly a prototype of Shiva.
Nature Worship: Worship of trees (Pipal), animals (unicorn, bull), and stones (phallic symbols?).
Burial Practices: Generally extended burials with grave goods. Fractional burials (collection of bones) also found.

[IMAGE: Seals showing Pashupati, Unicorn, and Mother Goddess figurines]

7. Contacts with Other Cultures

The Harappans were not isolated and had significant interactions.

Mesopotamia: Cuneiform texts refer to trade with "Meluhha" (likely the Indus region). Harappan artifacts found there.
Central Asia: Sites like Shortughai (Afghanistan) were Harappan trading outposts for lapis lazuli.
Within Indian Subcontinent: Raw material procurement from Khetri (copper), Gujarat (semi-precious stones), Himalayas (timber).

8. Decline Factors

The decline was gradual and regionally varied, not a sudden collapse. Multiple factors likely interacted.

Climatic and Environmental Factors:
- Drying of the Ghaggar-Hakra river system (possibly the Saraswati).
- Increased aridity, deforestation.
- Recurrent floods in the Indus core region.
Geological Factors: Tectonic uplift blocking Indus water flow, creating floods (theory for Mohenjo-daro).
Economic and Administrative Factors:
- Breakdown of long-distance trade with Mesopotamia.
- Over-exploitation of resources.
- Possible failure of the centralized system.
Human Factors:
- Note: Old "Aryan Invasion" theory causing violent destruction is largely rejected by archaeologists now.
- Shifts in population to newer, smaller settlements in Gujarat, Punjab, and the Ganga valley.

[VIDEO: "Theories of Indus Valley Civilization decline explained"]

Key Takeaways

Chronology: Mature Harappan phase (2600-1900 BCE) represents one of the world's first urban civilizations.
Urban Hallmark: Distinguished by exceptional town planning, standardized bricks, and advanced drainage systems.
Economic Base: Supported by agriculture, animal husbandry, specialized crafts, and extensive internal and external trade.
Cultural Identity: Known for its unique script (undeciphered), seals, pottery, and religious elements that show some continuity in later Indian traditions.
Decline: Was a complex process caused by a combination of climatic, environmental, economic, and possibly social factors, leading to de-urbanization and regionalization.

Chapter 2: Indus Civilization