Kalibangan site

Kalibangan, which translates to “Black Bangles” in Rajasthani (derived from the abundance of fragments of weathered terracotta and shell bangles found on the surface), is located in the Hanumangarh District (formerly part of Ganganagar district) of Rajasthan, India. The site is situated on the left bank of the dry bed of the seasonal Ghaggar River, which is identified by geologists and historians as the palaeochannel of the ancient Sarasvati River.

Archaeological Discovery and Timeline

• Discovery: The archaeological potential of the site was first identified by Italian linguist and indologist Luigi Pio Tessitori in 1917–18 while surveying historical monuments. However, it was formally recognized as a major Harappan site in 1952 by Amlanand Ghosh, the former Director-General of the Archaeological Survey of India (ASI).
• Excavations: Large-scale, systematic excavations were carried out over a decade from 1961 to 1969 under the leadership of B.B. Lal and B.K. Thapar.
• Chronology: Kalibangan demonstrates a clear dual cultural sequence:
  • Phase I (Pre-Harappan / Early Harappan): c. 3000 BCE to 2600 BCE.
  • Phase II (Mature Harappan): c. 2600 BCE to 1900 BCE.

Pre-Harappan Settlement (Phase I)

The lower strata of Kalibangan provide invaluable insights into the transition from pastoral-agrarian communities to a sophisticated urban layout.

The World’s Earliest Ploughed Field

The most monumental discovery from the Pre-Harappan phase at Kalibangan is a ploughed agricultural field.

• It features a grid pattern of intersecting furrows running north-south and east-west.
• The short-distance furrows were spaced closely together, while the long-distance furrows were spaced wider apart. This configuration indicates double-cropping (growing two different crops simultaneously in the same field), a practice still followed in modern Rajasthan for sowing mustard and chickpea.

Pre-Harappan Architecture and Pottery

• Fortification: Even in its early phase, the settlement was enclosed by a massive mud-brick wall to safeguard against floods and adversaries.
• Fabric Pottery: The ceramic assemblage of this phase is classified into six distinct varieties, collectively known as the “Kalibangan Fabrics” (Fabrics A, B, C, D, E, and F), characterized by rough textures, incised decorations, and dull red slips.

Mature Harappan Settlement (Phase II)

During the Mature Harappan period, Kalibangan was transformed into a well-planned, fortified urban center, though it retained distinct regional characteristics that set it apart from Indus cities in Sindh and Punjab.

Dual Citadel and Grid Town Planning

• The Citadel (Western Mound): Unlike other sites where the citadel was a single unit, Kalibangan’s citadel was divided into two distinct, equal halves by a fortified partition wall. The southern half contained massive mud-brick platforms that supported ritualistic structures, while the northern half contained residential quarters for elite administrators or priests.
• The Lower Town (Eastern Mound): Laid out in a typical gridiron pattern with streets cutting across at right angles. The residential houses were constructed almost exclusively using unbaked mud bricks, reserving expensive kiln-burnt bricks strictly for wells, drains, and bathing platforms.

Unique Fire Altars and Rituals

Kalibangan provides the most definitive evidence of corporate or state-sponsored religious rituals in the Indus Valley Civilization.

• A row of seven rectangular fire altars aligned north-to-south was discovered on a mud-brick platform in the citadel.
• These altars contained ash, charcoal, and a central cylindrical clay stele (pillar).
• The presence of animal bones (specifically cattle) inside and near these pits strongly suggests the practice of ritualistic animal sacrifice and fire worship, contrasting sharply with the Mother Goddess cult prevalent in Mohenjo-daro.

Socio-Economic, Technological, and Medical Highlights

Earliest Evidence of Earthquake

Kalibangan holds the unique distinction of preserving the earliest archaeologically recorded evidence of an earthquake in human history. Dated to approximately 2600 BCE, a structural stratum shows deep faulted fractures, crumpled mud-brick walls, and disrupted floor levels. This seismic event brought an abrupt end to the Pre-Harappan settlement and triggered the immediate reconstruction that defined the Mature Harappan phase.

Primitive Cranial Surgery (Trepanation)

Excavations at the Kalibangan burial ground yielded a child’s skull showing clear signs of trepanation (skull boring).

• The skull featured six perforated holes and evidence of bone healing.
• This provides groundbreaking evidence of primitive surgical practices aimed at treating intracranial pressure or hydrocephalus during the Bronze Age.

Absences in Civic Infrastructure

• No Street Drains: Unlike the flawless drainage networks of Mohenjo-daro, Kalibangan lacked systematic public street drains. Wastewater from private houses was collected in large, earthenware soakage jars or wooden troughs embedded directly into the street floors outside the doorsteps.

Key Archaeological Artifacts and Features

Decline and Desertion

The decline of Kalibangan occurred around 1900 BCE and is largely attributed to ecological and hydrological changes.

• Drying of the Ghaggar-Sarasvati System: Tectonic disturbances in the Himalayan foothills diverted the water supply of the Sutlej and Yamuna rivers away from the Ghaggar channel. This caused the river system to dry up, turning a fertile agricultural zone into an arid desert.
• Abandonment: Deprived of its primary water source for agriculture and domestic survival, the population gradually migrated eastward toward the fertile Ganga-Yamuna Doab, leading to a peaceful, gradual abandonment of the metropolis.

Key Historical Trivia for Prelims

• Kalibangan is the only major Indus Valley site where the residential houses of the lower town were made entirely of mud bricks rather than fired bricks, indicating localized resource optimization.
• It is one of the few Harappan sites completely devoid of standard Mother Goddess figurines, suggesting that its religious practices were overwhelmingly centered on fire rituals and animal sacrifice.
• The site exhibits the earliest usage of interlocking decorative tiles for flooring in the history of architecture.