The name of this civilization says it all: Sapta Sindhu — the Seven Rivers. Not one river. Not one dominant waterway. Seven — a number that, in Vedic cosmology, expresses completeness, totality, perfect organization.
These seven rivers were not merely a geographical backdrop. They were the fundamental infrastructure of the entire civilization — the source of drinking water, the engine of agriculture, the axis of commercial routes, and the centre of spiritual life. In hymn 10.75 of the Rig Veda, the rishi Sindhukṣit Praiyamedha names them all, invokes them all, asks them to join in his praise:
10.75.5 — Join my praise, O Ganges, O Yamunā, O Sarasvatī, O Shutudrī, O Paruṣṇī. With the Asiknī, with the Marudvṛidhā, with the Vitastā, listen with those who love Soma in the cup.
Seven rivers. One hymn. And an entire civilization dependent on them.
Identifying the Seven Rivers
In The Civilization of the 7 Rivers, I establish this clearly: the civilization takes its name from Sapta Sindhu — the seven rivers in Sanskrit. And hymn 10.75 gives their list with remarkable geographical precision.
The names have sometimes changed but not all. The rivers of the hymn correspond to those we know today:
The Sarasvatī — the greatest, the most sacred, called Ghaggar in India and Hakra in Pakistan. It dried up around 1900 BCE.
The Shutudrī — the modern Sutlej, which still flows from Tibet toward Pakistan.
The Paruṣṇī — the modern Ravi, one of the five rivers of the Punjab.
The Asiknī — the modern Chenab, also in the Punjab.
The Vitastā — the modern Jhelum, flowing through Kashmir.
The Vipāśā — the modern Beas, mentioned in hymn 3.33 where Viśvāmitra summons it.
The Yamunā — whose geography has evolved since Antiquity, but which then flowed further west than today, toward the Sarasvatī.
These rivers do not only occupy the present-day Punjab. They structure a vast territory — from the Ganges to the Indus, as indicated by hymn 10.75.5.
Water as political infrastructure
In The Civilization of the 7 Rivers, I document what archaeology reveals: the cities of this civilization were built along the rivers. This is where its name — Sapta Sindhu — comes from. Every great city is on a river, or in its immediate proximity.
This is not simply a matter of convenience. It is a matter of survival. In a semi-arid environment like the north-western Indian subcontinent, access to fresh water was the absolute condition of a city’s existence. A city without a river cannot feed thousands of inhabitants. It cannot maintain its well network. It cannot irrigate its fields.
The politics of this civilization were therefore, fundamentally, a politics of water. Decisions about where to locate cities, commercial routes, alliances between communities — everything revolved around the rivers.
The Battle of the Ten Kings: a conflict over water and pastures
The best-documented war of the entire Vedic period — the Daśarājña, the “Battle of the Ten Kings” — is described in hymns 7.18 and 7.33 of Vasiṣṭha’s mandala. And it is a war that unfolds on the banks of rivers.
King Sudās and his Tṛtsu tribe face a coalition of ten kings on the banks of the Paruṣṇī — the modern Ravi. Vasiṣṭha, royal priest of the Tṛtsus, invokes Indra to open a ford in the river and allow Sudās’s army to cross.
7.18.5 — Indra, knowing the streams, created for Sudāsa an easy-to-cross ford.
And in hymn 3.33, it is Viśvāmitra — Vasiṣṭha’s rival — who accomplishes the same miracle for the Bharatas, asking the rivers Vipāśā and Shutudrī to lower themselves to let the army pass.
These accounts are not gratuitous mythology. They reflect a precise geopolitical reality: the rivers were natural frontiers and vital resources. To control them, cross them, divert them — this was the stake of conflicts between tribes and kingdoms.
The Sarasvatī as central political axis
In The Civilization of the 7 Rivers, I document that the greatest cities of the civilization were on the banks of the Sarasvatī: Rakhigarhi, Kalibangan, Banawali, Ganweriwala. Not on the Indus — on the Sarasvatī.
It was she who was “the best of rivers” — naditama — in the Rig Veda. It was her progressive drying up, between 2200 and 1900 BCE, that triggered the greatest geopolitical crisis in the history of this civilization.
As I underline in The Civilization of the 7 Rivers, Himalayan earthquakes progressively diverted the tributaries of the Sarasvatī — the Yamunā toward the Ganges, the Shutudrī toward the Indus. Deprived of her Himalayan sources, the Sarasvatī dried up. And with her, the cities on her banks had to be abandoned.
This is the first great crisis in history linked to the disappearance of a large-scale water resource.
What the geopolitics of the 7 Rivers says to our time
Today, the rivers that formed the heart of the 7 Rivers civilization are at the centre of major geopolitical tensions.
The Indus and its tributaries — feeding the agriculture of 200 million Pakistanis — are shared between India and Pakistan under the Indus Waters Treaty of 1960, one of the only treaties between the two countries to have survived all crises. But tensions over this treaty are intensifying as Pakistan sees its water resources diminish.
The Yamunā — polluted, fragmented by dozens of dams — feeds Delhi, one of the world’s largest cities.
The Himalayan glaciers that fed the Sarasvatī and the other rivers are melting at an accelerating rate under the effect of climate change. China, India, Pakistan, Bangladesh — billions of people depend on these glaciers as a “water tower.”
In The Civilization of the 7 Rivers, I note with an anxiety that current events confirm: a major climatic disruption had already caused, four thousand years ago, the disappearance of a great civilization. The same rivers are today under the same pressures — with a population a thousand times larger.
The seven rivers have been looking at us for four thousand years. And they still ask the same question: how does a civilization organize itself around a resource that everyone shares and on which everyone depends?
The 7 Rivers civilization had an answer. Ours is still searching.
