Indo-Scythian Kingdoms in Afghanistan and South Asia

Indo-Scythian is a modern label for Saka groups and rulers who moved from Central Asia into Afghanistan, eastern Iran and the northwestern Indian subcontinent, and for the regional states they established. Their history spans migrations beginning in the second century BCE and Saka rule in parts of South Asia into the early centuries CE. It was not the southward expansion of one continuous empire from the Black Sea to India: these were connected but distinct regional histories, shaped by migration, local alliances and changing political powers.

The names can obscure those distinctions. Saka was a broad designation, and Greek writers used “Scythian” for some peoples whom Persian and Indian sources called Saka or Shaka. The Pontic Scythians of the northern Black Sea steppe were not the rulers of South Asia. Pazyryk burials, often discussed in connection with ancient steppe cultures, are evidence from the Altai, not direct evidence for Indo-Scythian kingdoms in Afghanistan or India.

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Migration and settlement in the east

Chinese historical accounts describe movements among Central Asian peoples in the second century BCE. They report that the Xiongnu defeated the Yuezhi around 175 BCE, driving many of the Yuezhi west. Their movement displaced Saka groups, some of whom travelled south toward Ferghana and Sogdiana. After further conflict in the region, Saka groups moved toward Bactria, Afghanistan and lands nearer the Parthian Empire. These accounts describe successive pressures and migrations, not a single organised campaign by a unified Saka state.

Some Saka groups settled in Drangiana, around the region of Lake Hamun in what is now southwestern Afghanistan and southeastern Iran. The area became known as Sakastan, or Sistan. The first-century BCE writer Isidore of Charax described Saka communities and a royal residence there. From such Central Asian and Afghan bases, Saka rulers and allied groups extended their power into parts of the lower Indus region and the northwestern subcontinent.

Rulers between Taxila and Mathura

Maues, also called Moga, established Saka power in Gandhara and around Taxila during the first century BCE. His coins adapted Greek royal imagery, placing his rule within a region already governed by Indo-Greek kings. After his death, Indo-Greek rulers recovered some territory; later in the century, Azes expanded Saka control. Coins help reconstruct these changes, although precise regnal dates remain debated.

Saka rule also reached Mathura in northern India, around 60 BCE. Local rulers there included satraps Hagamasha and Hagana, followed by Rajuvula. An inscribed sandstone capital from Mathura, known as the Mathura lion capital, records the lineage of regional rulers and a Buddhist dedication by Rajuvula’s queen. Its evidence presents a court connected to wider Saka power but operating through local rulers, families and patrons. Rajuvula’s rise also marked the decline of Indo-Greek rule in the area.

Satraps and regional government

Satrap derives from an older term for a provincial governor or viceroy. In these South Asian kingdoms, however, the title could belong to powerful local rulers as well as to officials who acknowledged a higher authority. The title alone does not establish whether a ruler was independent. Inscriptions, coin legends and the circumstances of particular alliances help clarify the relationship.

Rulers identified as the Northern Satraps held power around Punjab and Mathura. Some later served under the Kushans: an inscription from Sarnath records the satrap Vanaspara and the “Great Satrap” Kharapallana acknowledging Kanishka’s authority. The Western Satraps, another Saka ruling tradition, held territories in western and central India, including Gujarat and Malwa. They were not simply a southern province of the earlier kingdom around Taxila. Their rulers used the title kshatrapa; mahakshatrapa, or “Great Satrap,” denoted a higher rank.

The Western Satraps are known from the first century CE into the early fifth century. Their rulers included Nahapana of the Kshaharata dynasty and Castana and Rudradaman I of the Kardamaka dynasty. Their power shifted through conflict with the Satavahanas. Gautamiputra Satakarni defeated Nahapana, and coins of Nahapana were later restruck under Satavahana authority. Rudradaman’s inscription at Junagadh, dating to around 150 CE, claims victories over Satavahana forces and the Yaudheyas. These contests, and the changing reach of Saka power, show why the Western Satraps need to be treated as a distinct regional history.

Coinage and the signs of rule

Coins made kingship visible across regions where authority was divided among rival rulers and local dynasties. Many Indo-Scythian coins continued Indo-Greek conventions: they used Greek letters on one side and Kharoshthi, a script used in the northwest, on the other. Rather than relying only on a conventional portrait bust, some showed a king on horseback or seated. Images of Greek deities appeared alongside Buddhist symbols, including the three-jewel emblem known as the triratna.

Coinage also varied by place and period. Rajuvula’s issues are described as less refined and lower in silver than earlier coins, while Western Satrap rulers maintained a recognisable silver coinage for centuries. Their coins commonly showed a royal bust and Greek-style lettering on one side, with a hill, river and other symbols alongside a Prakrit legend in Brahmi script on the other. Some recorded dates and the names of rulers’ fathers, helping to establish succession and chronology. Coin legends and dated issues make the relationships among these regional rulers unusually visible.

Religious gifts and local institutions

Buddhist institutions received gifts from rulers, officials and their families. A copper plate from Taxila records Patika Kusulaka’s dedication of a Buddha relic, while the Mathura lion capital records a queen’s gift to a stupa. A relic deposit placed bodily remains or other sacred material within a monument, creating a focus for worship and gifts.

The Bimaran deposit in eastern Afghanistan contained a gold reliquary decorated with standing figures of the Buddha. Coins issued in the name of Azes accompanied the deposit, but these are later imitations, so they do not date the gift directly to his lifetime. The object belongs to the region’s early Buddhist patronage and artistic development rather than proving a commission by Azes himself.

In the western regions, patronage could provide practical resources as well as religious objects. Ushavadata, Nahapana’s son-in-law and an official in his service, is recorded as giving caves and cisterns to Buddhist communities. An inscription at Karla records a village given to support ascetics living at the cave complex. Such gifts helped provide space and resources for religious life. The broader religious landscape also appears in coinage, where Buddhist emblems occur alongside images of Greek gods.

Rival powers and the end of Saka rule

Indo-Parthian rulers gained power in parts of the northwest after Azes. Saka authorities could remain in local positions under new overlords. The Kushans subsequently expanded from Bactria into Gandhara and northern India during the first and early second centuries CE. The Sarnath inscription naming satraps under Kanishka shows regional officeholders participating in this new order.

The Western Satraps followed a different course. They continued to rule parts of western India while competing with the Satavahanas, and their political power lasted beyond the loss of Saka authority in the northwest. Chandragupta II of the Gupta Empire defeated the last Western Satrap ruler, Rudrasimha III, around the end of the fourth century or the beginning of the fifth. Across these regions, Saka rule ended through different local contests and realignments, rather than through the collapse of a single Indo-Scythian empire.

For the wider setting, see Scythian historical context.