History
Indus Valley Civilisation
Indus Valley Civilisation — Quick Revision
One-page CGPSC quick revision for the Indus Valley Civilisation: every site, river, excavator, object, scholar and date in tables for last-minute revision.
The Harappan Civilisation on one page: phases, sites, town planning, economy, religion, script and decline. For explanations, go back to the chapter.
How to use this sheet
Scan it top to bottom in the week before Prelims. Bold entries are the facts examiners return to most often.
Timeline
| Date | Event |
|---|---|
| c. 7000 BCE | Mehrgarh (Balochistan): Neolithic farming, a precursor |
| c. 3300–2600 BCE | Early Harappan (Kot Diji, Amri, Hakra); Kalibangan’s ploughed field belongs here |
| c. 2600–1900 BCE | Mature Harappan: cities, seals, script, standard weights |
| c. 2334–2284 BCE (as usually dated) | Sargon of Akkad mentions ships from Meluhha |
| c. 2200 BCE | 4.2 kiloyear dry event |
| c. 1900–1300 BCE | Late Harappan: de-urbanisation, regional cultures |
| 1826 / 1875 | Charles Masson describes Harappa / Cunningham publishes a Harappan seal |
| 1921 | Harappa excavated: Daya Ram Sahni |
| 1922 | Mohenjo-daro: R.D. Banerji |
| 20 Sep 1924 | John Marshall announces the civilisation (Illustrated London News) |
| 1964 | George Dales, “The Mythical Massacre at Mohenjo-daro” |
| 1977 | Iravatham Mahadevan’s concordance: 417 signs |
| 1980 | Mohenjo-daro a UNESCO World Heritage Site |
| 2019 | Rakhigarhi ancient DNA study (Cell): no Steppe ancestry in the sample |
| 27 Jul 2021 | Dholavira a UNESCO World Heritage Site (India’s 40th) |
| 5 Jan 2025 | Tamil Nadu announces a US$1 million prize for deciphering the script |
| Nov 2025 | Drought study (Communications Earth & Environment, IIT Gandhinagar): four droughts, each over 85 years |
Sites at a Glance
| Site | River / setting | State / country | Excavator | Signature find |
|---|---|---|---|---|
| Harappa | Ravi | Punjab, Pakistan | Daya Ram Sahni, 1921 | Granary (two rows of six), Cemetery R-37, Cemetery H, coffin burial |
| Mohenjo-daro | Indus | Sindh, Pakistan | R.D. Banerji, 1922 | Great Bath, great hall/“granary”, Priest-King, Dancing Girl, Pashupati seal, cotton cloth |
| Chanhudaro | Indus | Sindh, Pakistan | N.G. Majumdar, 1931 | No citadel; bead workshop |
| Kalibangan | Ghaggar | Rajasthan | B.B. Lal, B.K. Thapar (1960–69) | Ploughed field, fire altars, mud bricks |
| Lothal | Bhogava | Gujarat (Ahmedabad) | S.R. Rao, 1955–60 | Dockyard, bead factory, rice husk, double burial, Persian Gulf seal |
| Dholavira | Mansar and Manhar streams, Rann of Kutch | Gujarat (Kutch) | J.P. Joshi (found 1967–68); R.S. Bisht (1990–2005) | Three divisions, reservoirs, signboard |
| Rakhigarhi | Ghaggar–Chautang | Haryana (Hisar) | ASI; Vasant Shinde | Largest in India; DNA study |
| Banawali | Ghaggar basin | Haryana (Fatehabad) | R.S. Bisht | Terracotta plough, barley, no strict grid |
| Surkotada | Kutch | Gujarat | J.P. Joshi, 1964 | Disputed horse bones |
| Ropar | Sutlej | Punjab (India) | Y.D. Sharma | Dog buried with human |
| Alamgirpur | Hindon | Uttar Pradesh | Y.D. Sharma, 1958 | Easternmost |
| Manda | Chenab | Jammu | J.P. Joshi | Northernmost |
| Daimabad | Pravara | Maharashtra | — | Southernmost; bronze hoard (affiliation debated) |
| Sutkagendor | Dasht | Balochistan, Pakistan | Aurel Stein; George Dales | Westernmost |
| Shortughai | Near the Amu Darya | Afghanistan | French team | Lapis lazuli outpost; canals |
| Rangpur | Saurashtra | Gujarat | — | Rice husk; Late Harappan culture |
Town Planning
| Feature | Fact |
|---|---|
| Layout | Citadel (west, raised) + lower town (east); Dholavira three parts; Chanhudaro no citadel |
| Streets | Grid, crossing at right angles (Banawali the exception) |
| Bricks | Burnt and sun-dried; ratio 1 : 2 : 4; Kalibangan mostly mud brick |
| Drains | Covered, with inspection openings and cesspits |
| Houses | Courtyard; doors to side lanes; bathrooms; wells (about 700 at Mohenjo-daro) |
| Great Bath | About 12 × 7 m, 2.4 m deep; gypsum mortar and bitumen; steps north and south |
| No | Palaces, temples, iron, stone buildings |
Economy
| Item | Fact |
|---|---|
| Staples | Wheat, barley; pulses, sesame, mustard, cotton |
| Rice | Lothal, Rangpur |
| Animals | Humped bull, buffalo, sheep, goat, pig, dog; horse not on seals |
| Metals | Copper, bronze, gold, silver, lead; no iron |
| Weights | Chert, cubical; binary (small), decimal (large) |
| Scales | Ivory (Lothal), shell (Mohenjo-daro) |
| Exchange | Barter, no coins |
| Sources | Copper: Khetri, Oman · Lapis: Badakhshan via Shortughai · Carnelian: Bharuch · Chert: Rohri |
| Gulf names | Dilmun = Bahrain · Magan = Oman · Meluhha = Indus |
Religion, Art and Script
| Item | Fact |
|---|---|
| Mother Goddess | Terracotta female figurines |
| Pashupati seal | Steatite, Mohenjo-daro; elephant, tiger, rhinoceros, buffalo, two deer; Marshall’s “proto-Shiva” |
| Fire altars | Kalibangan, Lothal |
| Other | Pipal, humped bull, “unicorn” (commonest seal motif), swastika, amulets; no temples |
| Burials | Extended inhumation; coffin (Harappa), double (Lothal), dog (Ropar), pot burials (Cemetery H) |
| Dancing Girl | Bronze, lost-wax; National Museum, New Delhi |
| Priest-King | Steatite; trefoil shawl; Karachi |
| Script | About 400 signs (Mahadevan 417); right to left; longest text about 26 signs; undeciphered (as of 2026) |
Decline: Theory and Scholar
| Theory | Scholar |
|---|---|
| Aryan invasion (“Indra stands accused”) | Mortimer Wheeler |
| Refutation of the massacre | George Dales (1964) |
| Floods / tectonic uplift | M.R. Sahni, R.L. Raikes, G.F. Dales |
| Indus changed course | H.T. Lambrick |
| Aridity | Aurel Stein, A.N. Ghosh; 2025 drought study |
| Ecological overuse | Walter Fairservis |
| Disease | K.A.R. Kennedy |
| Consensus | Multiple causes, gradual de-urbanisation; migration east and south |
Don’t Confuse
| This | vs | That |
|---|---|---|
| Harappa — first excavated (1921), Ravi | vs | Mohenjo-daro — 1922, Indus, Great Bath |
| Kalibangan — ploughed field | vs | Banawali — plough model |
| Chanhudaro — no citadel | vs | Dholavira — three divisions |
| Rakhigarhi — largest in India | vs | Mohenjo-daro — UNESCO site in Pakistan |
| Dilmun — Bahrain | vs | Magan — Oman |
| Dancing Girl — bronze | vs | Priest-King — steatite |
| Indus script — right to left | vs | Brahmi — left to right |
| Wheeler — invasion | vs | Dales — refutation (1964) |
Favourite MCQ trap
“The Pashupati seal shows a bull, and the Harappans used iron ploughs found at Kalibangan.” Every part is wrong: the seal shows an elephant, tiger, rhinoceros and buffalo; the Harappans had no iron; Kalibangan has a ploughed field, and the plough model is from Banawali.
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