From Śaṅkara to Rāmānuja — How South India's Religious Landscape Changed
Between approximately the 8th and 13th centuries, South India witnessed one of the most remarkable transformations in its religious history.
This was not a period when one religion simply replaced another.
Rather, several traditions lived, debated, influenced and sometimes competed with one another:
Śaivism • Vaiṣṇavism • Buddhism • Jainism • Vedānta • local temple traditions • devotional bhakti
And the balance between them gradually changed.
Śaṅkara — philosophy at the centre
Ādi Śaṅkarācārya belongs broadly to the 8th century.
Buddhist philosophical schools were still part of the intellectual world in which Vedānta developed. Jainism too remained an important tradition.
Śaṅkara's great contribution was to give Advaita Vedānta a powerful philosophical formulation.
For Advaita, the ultimate reality is Brahman. The deepest self, the ātman, is not ultimately separate from Brahman.
His work was primarily philosophical and monastic: interpreting the Upaniṣads, Bhagavad Gītā and Brahma Sūtras and establishing a systematic Vedāntic position.
It is therefore too simple to say:
"Śaṅkara defeated Buddhism."
The historical reality is much more gradual. Buddhism was already undergoing changes in different parts of India, while Hindu devotional traditions were becoming extraordinarily powerful in the South.
And something else was happening — Bhakti
This may actually be the most important part of the story.
From around the 6th–7th centuries, Tamil South India witnessed a remarkable flowering of devotional poetry.
The Āḻvārs sang of Viṣṇu.
The Nāyaṉmārs sang of Śiva.
They did not primarily present religion as an abstract philosophical system.
They loved God.
They sang to Him, wept for Him, travelled to His temples and celebrated His presence in particular sacred places.
This devotional movement became one of the foundations of medieval South Indian religious culture.
And something extraordinary happened:
Philosophy and devotion began to meet.
The Cholas — when the temple became a civilisation
The Chola period, approximately 849–1279, transformed the physical and social landscape of Tamil South India.
Temples became much more than places where people occasionally came to pray.
They became centres around which settlements, agriculture, irrigation, commerce, art, music, festivals and administration developed. Scholars describe this phenomenon as temple urbanism.
Think of the world of:
Thanjavur → Bṛhadīśvara
Chidambaram → Naṭarāja
Śrīraṅgam → Raṅganātha
Kanchipuram → numerous Śaiva and Vaiṣṇava temples
Kanchipuram itself developed as a major multireligious pilgrimage centre, with Hindu temples alongside continuing Buddhist networks and connections across the Bay of Bengal.
So this was not simply "the age of one Hindu sect."
It was an extraordinarily rich religious ecosystem.
Rāmānuja — a new synthesis
Then, in the 11th–12th centuries, comes Rāmānuja.
And here the story becomes especially interesting.
Rāmānuja did not merely create another philosophical school.
He brought together several streams:
Vedānta
Vaiṣṇava devotion
Tamil Āḻvār poetry
Sanskrit theological tradition
Temple worship
A disciplined religious community
His Viśiṣṭādvaita taught that Brahman is one, but that the individual souls and the universe are real and have an inseparable relationship with the Supreme.
For Rāmānuja, the world was not something to dismiss as meaningless.
It was the body of God.
The individual soul was real.
Devotion was real.
God was personal.
And surrender—prapatti—became a profound religious path.
That gave philosophy an intensely devotional and practical dimension.
Rāmānuja's importance therefore extends far beyond his philosophical writings. He helped shape an enduring Śrī Vaiṣṇava religious institution and way of life.
What happened to Buddhism?
This is where we should correct the impression that Buddhism suddenly disappeared.
It didn't.
Buddhism had been enormously important in earlier Indian history, and Buddhist networks continued across South and Southeast Asia.
The Chola maritime world actually had Buddhist connections across the Bay of Bengal. Nagapattinam is particularly significant, with Buddhist establishments linked to the maritime world of Sri Lanka and Southeast Asia.
But by the period of Rāmānuja, Buddhism was no longer the dominant religious force in most of the Tamil country.
That distinction is important.
It would be wrong to write:
"Buddhism disappeared."
Better:
"Buddhism, once a major force in the Indian religious landscape, survived in particular centres and networks, but its influence in much of South India had diminished as Śaiva and Vaiṣṇava temple traditions and bhakti became increasingly powerful."
And Jainism?
Jainism had a somewhat different story.
It remained influential in several parts of South India, particularly in Karnataka and Tamil regions, and Jain communities participated in commerce, scholarship and political life.
So the medieval South Indian religious landscape was not:
Hinduism versus Buddhism.
It was more like:
Śaiva + Vaiṣṇava + Jain + Buddhist + local traditions + philosophical schools
all interacting within changing political and economic circumstances.
The Pandyas
Moving south into the Pandya country, Śaivism became particularly prominent, but Vaiṣṇava traditions were also deeply established.
The region around Madurai developed an especially powerful Śaiva sacred landscape, while places such as Āḻvār Tirunagari, Tirukkurungudi and Śrīvilliputtur became important Vaiṣṇava centres.
This is one reason South Indian religious history cannot be understood merely through royal dynasties.
The poet-saints and temples were shaping society alongside the kings.
And then the Kakatiyas
Now move north into present-day Telangana.
The religious landscape changes again.
The Kakatiyas were particularly associated with Śaivism.
But their world was not religiously monochromatic.
The famous Thousand Pillar Temple at Hanamkonda, for example, contains shrines associated with Śiva, Viṣṇu and Sūrya.
And the extraordinary Kakatiya temples demonstrate how deeply temple architecture, royal power and religious devotion had become intertwined.
So while Rāmānuja was strengthening the Vaiṣṇava world farther south, the Kakatiya country was developing an impressive Śaiva temple culture.
The great transformation
Perhaps the easiest way to understand the whole period is this:
Earlier emphasis
Growing medieval emphasis
Philosophical debate
Philosophy plus devotion
Monastic institutions
Temple institutions
Sanskrit intellectual traditions
Sanskrit and regional languages
Buddhism & Jainism as major competitors
Śaiva & Vaiṣṇava traditions increasingly dominant in much of the South
Individual philosophical liberation
Personal relationship with God
Religious texts
Texts + temples + festivals + music + pilgrimage
Ideas
Ideas embodied in daily life
And this is why the period is so fascinating.
Śaṅkara asked, in essence:
What is ultimately real?
The Āḻvārs and Nāyaṉmārs expressed:
How do I love God?
Rāmānuja brought the two worlds together:
Who is God, who am I, what is my relationship with Him—and how do I live that relationship?
Meanwhile, the great Chola, Pandya, Hoysala and Kakatiya temples gave these ideas stone, ritual, music, festivals and community life.
That is the real story of medieval South India.
It was not the disappearance of one religion and the arrival of another. It was a gradual reconfiguration of the religious landscape—where philosophy, bhakti, temple culture and regional languages came together to create traditions that would survive for centuries.

