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Prelims GS-I · Ancient India · Indus Valley Civilization

Seals

Indus seals are small, usually engraved objects associated with the Harappan civilisation, especially its Mature phase, approximately 2600–1900 BCE. Their animal motifs, short inscriptions and impressions on clay provide evidence for craft production, identification, administration and exchange. Because the Indus script remains undeciphered, the precise meanings of most seals and their imagery are uncertain.

Indus civilisation seal unicorn at Indian Museum, Kolkata
Indus civilisation seal unicorn at Indian Museum, Kolkata. Photo: Royroydeb · CC BY-SA 4.0 · source
Pashupati Seal from the Harappan Civilization
Pashupati Seal from the Harappan Civilization. Photo: Aadrit28 · CC BY-SA 4.0 · source

1. Archaeological context and identifying features

Seals are among the most recognisable artefacts of the Indus or Harappan civilisation. They occur at major settlements such as Harappa and Mohenjo-daro in present-day Pakistan, and at Indian sites including Dholavira, Lothal, Kalibangan and Rakhigarhi. Their widespread distribution belongs to a broader pattern of shared urban practices that included standardised weights, specialised crafts and distinctive pottery. The characteristic inscribed seals are especially associated with the Mature Harappan period, approximately 2600–1900 BCE, although seal-making traditions had earlier antecedents.

The typical example is a small square stamp seal, usually only a few centimetres across, with an animal below a short line of signs. Many have a raised, perforated boss on the back. Rectangular, circular and other forms also occur, so square shape is a common feature rather than an absolute rule. Harappan stamp seals should be distinguished from the cylinder seals especially characteristic of Mesopotamia: a stamp seal is pressed onto a surface, whereas a cylinder seal is rolled across it.

Archaeologists interpret seals through their excavation context, material, manufacturing traces, inscriptions and associated objects. A seal from a workshop, a habitation area or a storage-related context may raise different questions about its use. An isolated museum object provides less contextual information. The civilisation's archaeological distribution also crosses modern national borders; Harappan material should not be treated as belonging exclusively to present-day India.

2. Materials, manufacture and the distinction between seals and sealings

Steatite, or soapstone, was the principal material used for the familiar Harappan seals. Relatively soft before treatment, it could be shaped and finely engraved. Many steatite seals received surface treatment and firing, producing a pale surface and greater hardness. Seals in other materials, including terracotta and copper, are also known. However, steatite remains the most important material to remember for a standard identification question.

The usual manufacturing sequence involved selecting and shaping a blank, preparing the face and reverse, engraving signs and motifs, and finishing the object. The reverse boss and its perforation required careful working. Designs were generally cut in intaglio: the engraved, recessed pattern produced a raised and reversed image when pressed into soft clay. Such precision indicates skilled craft production, but does not by itself prove that workshops were controlled by a king or central bureaucracy.

The distinction between a seal and a sealing is fundamental. The seal is the reusable tool; a sealing is the impressed material. Impressions of cords, matting or other packing materials on the reverse of some clay sealings can help reconstruct how packages or containers were secured. A sealing could identify responsibility and expose disturbance of a closure. Nevertheless, not every surviving seal has a known matching impression, and decorative, personal or ritual uses cannot be excluded.

How a seal could authenticate a package

  1. 1. Goods are placed in a container or wrapped package
  2. 2. A cord or closure secures the package
  3. 3. Soft clay is applied over the fastening
  4. 4. An engraved seal is pressed into the clay
  5. 5. The dried impression identifies the marking and may reveal disturbance

3. Animal motifs and religious interpretations

The most common animal motif is the conventionally named unicorn, shown in profile with a single long horn, often facing a stand-like object. Its frequency makes it an important marker of Harappan visual culture. Neither the identity of the animal nor the object before it is securely established. Interpretations include a mythical creature, a stylised representation of an animal, and an emblem associated with a social or economic group. Calling the object an incense burner or offering stand remains an interpretation, not a deciphered fact.

Other motifs include the humped bull or zebu, elephant, rhinoceros, buffalo and tiger. Composite creatures and scenes involving human or human-like figures also occur. Such images can illuminate how animals and symbolic beings were represented, but cannot automatically be read as literal inventories of local wildlife. Repeated motifs may have conveyed affiliation, authority, status or religious meaning. Since the script is unread, linking a particular animal to a named clan, merchant guild or deity is speculative.

The famous Mohenjo-daro seal commonly called Pashupati depicts a seated, horned figure surrounded by animals. John Marshall interpreted it as a possible prototype of Shiva, drawing on the posture, headdress and animal associations. Subsequent scholars have questioned this identification and even some details of the image. For UPSC, distinguish the secure observation of a seated figure with animal imagery from the debated claims of proto-Shiva worship, a specific yogic posture or direct continuity with later Hindu theology.

Reading Harappan seals: evidence and limits
FeatureEstablished observationInterpretive caution
MaterialSteatite was widely usedNot every seal was made of steatite
UnicornMost frequent animal motifIts identity and symbolic meaning remain uncertain
InscriptionMany seals bear short sequences of signsNo generally accepted decipherment exists
Clay sealingRecords an impression made by a sealIts exact function depends on archaeological context
Seated-figure sealFound at Mohenjo-daroIdentification with Shiva is debated

4. Inscriptions, administration and exchange

Many seals carry short inscriptions in the Indus script, though some are uninscribed. The script is generally understood to have been written predominantly from right to left. Its inscriptions are usually brief, and there is no generally accepted bilingual text that supplies a reliable key to decipherment. Sign totals vary according to how scholars classify variants. Claims that the inscriptions have conclusively established Sanskrit, a Dravidian language or another particular language should therefore be treated cautiously.

Their portability, repeated motifs and capacity to make identifiable impressions suggest roles in authentication and the movement or storage of goods. A seal may have identified an individual, institution or other social unit, but these possibilities cannot yet be securely separated. Seals should be studied alongside standardised weights, craft workshops, transport evidence and settlement networks. Their existence supports organised transactions; it does not prove coined money, a known taxation system or a single empire ruled from one capital.

Harappan and Harappan-related seals found in western Asian contexts contribute to evidence for connections with Mesopotamia and the Gulf. Mesopotamian texts refer to Meluhha, widely associated by scholars with the Indus region. Other relevant evidence includes carnelian beads and references to exchanged commodities. Gulf-region seals sometimes combine local forms with Indus-related features, suggesting interaction rather than uniform cultural control. A foreign find may reflect trade, migration, intermediaries or the movement of an object, not necessarily direct state-to-state commerce.

5. Historical significance and examination approach

Seals link three major dimensions of Harappan civilisation: specialised craftsmanship, a shared system of signs and images, and mechanisms for identifying or authenticating objects and transactions. Their broad similarities indicate substantial cultural integration, while regional differences caution against imagining complete uniformity. They are particularly valuable because no Harappan inscription can currently provide a securely translated account of political institutions, religious doctrines or everyday commercial arrangements.

For Prelims, use a hierarchy of confidence. Material, shape, findspot and visible motifs are usually stronger evidence than inferred functions or religious identities. Avoid confusing seals with terracotta figurines, copper tablets, coins or monumental inscriptions. Remember the characteristic square steatite stamp seal, the dominance of the unicorn motif, the undeciphered script and the debated Pashupati interpretation. Absolute statements that every seal was square, all seals were inscribed, or every motif represented a deity are unreliable.

Real-world case studies

Lothal: impressions and packaging

Clay sealings from Lothal in Gujarat include reverse impressions associated with packing or binding materials. They support an interpretation of sealing packages or containers and show why impressions can reveal practical uses more clearly than an engraved seal alone.

The first published Harappa seal

Alexander Cunningham published a seal from Harappa in his Archaeological Survey report for 1872–73, issued in 1875. Its unfamiliar signs were not then understood within a recognised Indus civilisation. Later excavations supplied the context, illustrating the importance of comparing artefacts across sites.

Previous year questions

No UPSC question has been asked directly on this micro-topic yet. Use the practice questions below.

Practice questions

Practice MCQ 1

Consider the following statements: 1. Steatite was commonly used for Harappan seals. 2. A sealing is an impression made by a seal. 3. All Harappan seals were circular. Which statements are correct?

  • A. 1 and 2 only
  • B. 2 and 3 only
  • C. 1 and 3 only
  • D. 1, 2 and 3

Practice MCQ 2

Which statement about the so-called Pashupati seal is most accurate?

  • A. Its inscription identifies the figure as Shiva
  • B. It was discovered at Sanchi
  • C. It depicts a seated figure whose identification with Shiva is debated
  • D. It establishes the existence of Vedic sacrificial rituals

Practice MCQ 3

Harappan-related seals found in western Asia most directly contribute evidence for which of the following?

  • A. Harappan political conquest of Mesopotamia
  • B. Interregional contact and exchange
  • C. A common deciphered language across both regions
  • D. The use of minted Harappan currency
Mains practice · Harappan seals illuminate economic organisation more securely than they reveal religious beliefs. Discuss with suitable examples. Answer in 150 words.
  • Introduce seals, sealings and the undeciphered script.
  • Explain authentication, packaging evidence and interregional exchange.
  • Use Lothal and western Asian finds as examples.
  • Discuss the unicorn and the contested Pashupati interpretation.
  • Conclude that economic functions also require contextual verification.

Further reading

  • NCERT, Themes in Indian History, Part I: Bricks, Beads and Bones.
  • Archaeological Survey of India: publications and excavation reports on Harappan sites.
  • National Museum, New Delhi: Harappan civilisation collection.
  • J. M. Kenoyer, Ancient Cities of the Indus Valley Civilization.

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