Indus valley civilization mind map for upsc

Indus Valley Civilization
Major Cities
  • Harappa
  • Mohenjo-daro
  • Lothal
  • Kalibangan
Features
  • Urban Planning
  • Drainage System
  • Granaries
  • Citadel and Lower Town
Art & Culture
  • Terracotta Figurines
  • Seals
  • Dancing Girl Statue
  • Bead Making
Economy
  • Agriculture
  • Trade (Internal & External)
  • Cotton Cultivation
  • Dockyard at Lothal
Decline
  • Climate Change
  • Floods
  • Decline in Trade
  • Possible Aryan Invasion
Indus Valley Civilization: Major Cities & Significance

Mohenjo-daro

  • Great Bath (ritual bathing).
  • Advanced drainage system.
  • Granaries and Assembly Halls.

Lothal

  • Famous Dockyard.
  • Trade center (beads, gems, ornaments).
  • Evidence of rice cultivation.

Kalibangan

  • Pre-Harappan and Harappan phases.
  • Evidence of ploughed agricultural field.
  • Fire altars (suggest ritualistic practices).

Dholavira

  • Unique water conservation system.
  • Divided into Citadel, Middle Town, Lower Town.
  • Large inscriptions in Harappan script found.
Indus Valley Civilization: Features & Significance

Urban Planning

  • Grid pattern layout of cities.
  • Wide roads, right-angle intersections.
  • Division into Citadel (administrative) & Lower Town (residential).

Architecture

  • Use of burnt bricks extensively.
  • Public buildings: Granaries, Great Bath.
  • Standardized residential houses with courtyards.

Drainage System

  • Covered drains running along streets.
  • Manholes at regular intervals.
  • Highly advanced sanitation system.

Art & Craft

  • Terracotta figurines (animals, humans).
  • Bead-making, pottery, metallurgy (copper, bronze).
  • Seals with intricate animal motifs.

Economy

  • Agriculture (wheat, barley, cotton).
  • Trade with Mesopotamia (Meluhha).
  • Standardized weights and measures.

Script

  • Undeciphered pictographic script.
  • Short inscriptions on seals and pottery.
  • Possible administrative or ritual use.

Religion

  • Worship of Mother Goddess.
  • Proto-Shiva (Pashupati Seal).
  • Tree (Peepal) and animal worship.
Indus Valley Civilization: Art & Culture

Seals

  • Steatite seals with animal motifs.
  • Unicorn, humped bull common figures.
  • Used for trade, identity, or religious purposes.

Terracotta Art

  • Clay figurines of animals, humans.
  • Mother Goddess figurines symbolizing fertility.
  • Toys with movable limbs, carts.

Sculptures

  • Bronze “Dancing Girl” of Mohenjo-Daro.
  • Bearded Priest statue (Steatite).
  • Evidence of advanced metallurgy and craftsmanship.

Pottery

  • Red and black painted pottery.
  • Geometric and animal motifs.
  • Used both for daily and ceremonial purposes.

Bead Making & Ornaments

  • Beads made of semi-precious stones (carnelian, lapis lazuli).
  • Gold and silver ornaments.
  • Advanced techniques of drilling and polishing.

Script & Inscriptions

  • Pictographic script on seals, tablets.
  • Yet to be deciphered.
  • Indicates administrative sophistication.

Music & Instruments

  • Evidence of string instruments (based on terracotta models).
  • Dance depiction in Dancing Girl statue.
  • Possible use of drums and other musical elements in rituals.
Indus Valley Civilization: Economy

Agriculture

  • Main occupation: Wheat, barley, cotton cultivation.
  • Use of plough, irrigation through wells and canals.
  • Surplus production supporting urban life.

Animal Domestication

  • Domesticated cattle, buffalo, sheep, goat.
  • Limited evidence of horse domestication.
  • Animals used for food, agriculture, trade.

Internal & External Trade

  • Trade in cotton, beads, pottery, metals.
  • Dockyard at Lothal for overseas trade.
  • Evidence of trade with Mesopotamia (Sumerian texts mention Meluha).

Craft Production

  • Skilled craftsmanship: pottery, bead-making, metallurgy.
  • Specialized centers like Chanhudaro.
  • Artisan class contributed to economy.

Foreign Relations

  • Trade links with Persia, Afghanistan, Central Asia.
  • Imported raw materials like lapis lazuli, copper.
  • Exported beads, textiles, pottery.

Currency & Exchange

  • No coinage system.
  • Barter system mainly used.
  • Seals possibly served as proof of ownership or trade authentication.
Indus Valley Civilization: Metallurgy

Copper

  • Extensively used for tools, vessels, ornaments.
  • Sources: Khetri mines (Rajasthan), Baluchistan.

Bronze

  • Alloy of copper + tin.
  • Used for statues (e.g., Dancing Girl), tools.
  • Indicates advanced knowledge of alloy making.

Gold

  • Found in jewelry: necklaces, bangles, earrings.
  • Source likely Karnataka region (gold fields).

Silver

  • Used for ornaments, vessels.
  • More abundant than gold.
  • Source: Afghanistan and western India.

Stone Tools

  • Continuity of stone tools like microliths.
  • Use of semi-precious stones for beads: Carnelian, Lapis Lazuli, Jasper.

Metal Tools

  • Axes, chisels, fish-hooks, knives made of copper/bronze.
  • Weapons were rare — suggests a peaceful society.

Significance

  • Advanced metallurgy = Technological sophistication.
  • Boosted trade (exports of crafted goods).
  • Helped in urbanization and cultural prosperity.
Indus Valley Civilization: External Trade

Trade with Mesopotamia

  • Known as “Meluha” in Sumerian records.
  • Exported: Cotton textiles, beads, ivory, pottery.
  • Imported: Silver, lapis lazuli, wool.

Trade with Persia (Iran)

  • Overland routes via Baluchistan.
  • Exchange of precious stones, metals.
  • Influence seen in some art motifs.

Trade with Afghanistan

  • Import of Lapis Lazuli (blue stone).
  • Gold from Badakhshan region.
  • Key mineral supplier to IVC craftsmen.

Trade with Oman Peninsula

  • Marine trade through Lothal port.
  • Exported goods: Beads, pottery.
  • Imported copper ingots (Magan).

Major Exports

  • Beads, ivory, pottery, cotton fabrics.
  • Gold and silver ornaments.
  • Shell and semi-precious stone products.

Major Imports

  • Raw materials: Tin, copper, silver, lapis lazuli.
  • Luxury goods: Woolen textiles, silver items.

Significance

  • IVC was globally connected — early globalization!
  • Boosted craft industries and urban economy.
  • Enhanced cultural exchanges and prosperity.
Decline of Indus Valley Civilization

Timeline

  • c. 1900 BCE – Start of decline.
  • c. 1800 BCE – Urban centers begin to collapse.
  • c. 1700 BCE – Regional cultures replace urbanism.
  • c. 1500 BCE – Complete end of urban civilization.

Climate Change

  • Weakening monsoon patterns.
  • Increased aridity (desertification).
  • River Saraswati (Ghaggar-Hakra) dried up.
  • Agricultural collapse, famine-like situation.

Frequent Floods

  • Layers of silt found in Mohenjodaro excavations.
  • Destruction of housing and city planning.
  • Forced mass migrations from cities.

Tectonic Activity

  • Earthquakes altered river courses (Indus, Saraswati).
  • Disrupted irrigation and agriculture.
  • Isolated urban centers from trade routes.

Aryan Invasion Theory

  • Proposed by early historians (e.g., Mortimer Wheeler).
  • Suggested violent destruction by invading Aryans.
  • Now largely dismissed – lack of strong archaeological proof.
  • Gradual internal decline more accepted today.

Economic Decline

  • Collapse of long-distance trade (Mesopotamia, Oman).
  • Disruption in craft production and specialization.
  • Urban economies could not sustain themselves.

Political Instability

  • No evidence of strong centralized rulers.
  • Possible local rebellions or power struggles.
  • Fragmentation into smaller, rural communities.

Cultural Decline

  • Decline of uniformity in weights, seals, script.
  • Loss of sophisticated town planning traditions.
  • No continuity of writing system after decline.

Overall Significance

  • Multifactorial decline – not a single cause.
  • Environmental factors primary contributors.
  • Urban collapse important lesson for civilization studies.
  • Contributed to early Vedic culture development later.
* * All the Notes in this blog, are referred from Tamil Nadu State Board Books and Samacheer Kalvi Books. Kindly check with the original Tamil Nadu state board books and Ncert Books.