The Dravidian temple form

The standard photograph of a South Indian temple is a gopuram: a tapering wall of carved tiers, usually photographed from below, filling the frame. It is a good photograph and a misleading one, because the gopuram is the gate. The thing the temple is actually organised around is behind it, and from outside the gate you cannot see it at all.

Two towers with different jobs

A Dravidian temple has two vertical elements and they are not the same kind of object. The vimana sits directly over the sanctum, is solid below and stepped above, and marks the presence of the deity. The gopuram sits over the entrance, is hollow, contains stairs, and marks the threshold between the town and the sacred precinct.

In the Chola period the hierarchy was unambiguous: the vimana dominated. Rajaraja I's temple at Thanjavur, completed in 1010, has a vimana of about 66 metres, and it was the tallest structure in India for centuries. The gopurams of the same period are modest — gateways, not monuments.

Then the relationship inverted. From the Vijayanagara period onward, patrons competed on the gate. The gopuram grew taller than the vimana, and in the Nayaka temples of the seventeenth and eighteenth centuries it became the principal object of expenditure. Madurai's Meenakshi temple has fourteen of them, the tallest at about 52 metres. Srirangam has twenty-one, and its Rajagopuram at 73 metres was not finished until 1987.

That inversion is the most interesting fact in South Indian temple architecture, and it is not a matter of taste. A vimana can only be enlarged by rebuilding the shrine, which means moving the deity and re-consecrating the whole complex. A gopuram can be enlarged by adding tiers to an existing gate. When patronage shifted from kings who could rebuild to merchant guilds and local assemblies who could only add, the architecture followed the money and the gate absorbed the ambition.

The enclosure is the building

The unit of a South Indian temple is not the shrine but the prakara — the walled enclosure around it. Large temples have several, nested, and each one is a datable layer of patronage. Srirangam has seven. Walking inward through them is walking through centuries, from the outermost street of shops and offices to the innermost court where only the ritual staff go.

This is why the temple is better understood as a city than as a building. The outer enclosures contain markets, granaries, kitchens, stables and housing for the staff who run the place. Inscriptions on the walls record land grants, endowments for lamps, salaries for drummers and dancing girls, and the administration of villages whose revenue was assigned to the temple. A temple of this type was a landholder, an employer and a bank.

The town then arranges itself around that. Four streets run along the axes of the compound, and the east street — Chitrai in Madurai, for instance — becomes the commercial spine. The temple does not sit in the town; the town is a growth ring around the temple. This is still visible in the urban fabric of any old South Indian city, and it is the reason the temple tank is where it is: the tank doubles as the bathing ghat for festivals that involve the whole town, so it has to be outside the inner enclosure but on the processional route.

What the carving is doing

The gopuram's surface is covered in figures, and the density increases with height. This is often read as an invitation to look up, and it is, but there is a structural reason too: the lower tiers carry the most load and have the least surface, so they are comparatively plain; the upper tiers are lighter, thinner-walled and freer, so the carving goes there.

The subjects are not decoration either. They are a programme: deities, guardians, mythic episodes, and — at the outer gates of some temples — figures that are frankly erotic. The erotic sculptures at Khajuraho get the attention, but the same logic appears in the South, and the standard explanation is defensible: the outer zone of a temple is the zone of the world, and the world includes desire; the inner zone is where desire is left behind. The building stages a transition rather than asserting a purity.

Thanjavur as the technical benchmark

It is worth knowing what Rajaraja's builders did, because it is not obvious. The vimana is granite, and there is no granite quarry within easy hauling distance of Thanjavur. The stone was brought from quarries around 50 kilometres away and raised to 66 metres without a crane, using ramps of earth that were built up and then removed. The capstone — a single block estimated at around 80 tonnes — is the piece everyone cites, and the engineering problem it represents is real: you cannot lift it, so you have to build a ramp to its final height, which means the ramp becomes a structure as large as the temple.

The result is a building that is also a statement of administrative capacity. A temple of that size requires a labour force that has to be fed, housed and paid for years. The inscription on the base lists the endowments that pay for it — lamps, musicians, watchmen, dancers — which is the Chola state writing its own budget onto the plinth.

How to read one

Enter through the gopuram, not around it, and note that you are walking through a threshold rather than into a room. Look up inside the gate passage: the ceiling is flat and low, deliberately, because the gate is a compression before the release of the courtyard.

Then, before going to the shrine, walk the outer street. Count the shops that sell flowers, camphor, coconuts and copper vessels, and notice that they are all on the same side of the road. That is the temple's supply chain, still operating, and it is a better index of how the institution worked than any carving on the tower.

One last thing: if a gopuram looks suspiciously crisp, check the date. Several of the most photographed ones are twentieth-century constructions, and at least one was completed after the internet existed.

Entry 04 of Architecture. The northern counterpart — a tower you are not allowed to see from outside in the same way — is entry 05.