Rayalaseema · Deccan Inland Plateau
Cross-border corridors
Traditions that continue past an administrative line. Written once at the corridor level and referenced from every region it crosses, never duplicated.
Vijayanagara Corridor
A single imperial building and painting idiom — the pillared kalyana mandapa with rearing-animal piers, the monolithic Nandi, the flat-outline mural on lime ground, and the stone chariot. Hampi, in Bayaluseeme across the Tungabhadra, is the capital; Penukonda is where the court retreated after 1565; Lepakshi, Tadipatri, Ahobilam and Srisailam are where the same masons worked. The court was Kannada- and Telugu-speaking at once, and Krishnadevaraya's own major poem is in Telugu.
How it diverges: Karnataka keeps the imperial capital as a ruin field and a World Heritage site; Rayalaseema keeps the same architecture as working temples with daily worship in them, and keeps the murals; Tamil Nadu received the idiom through the Nayaka successor courts, which enlarged the gopuram far beyond anything Vijayanagara built.
Ragi Ball Corridor
Finger millet beaten into a stiff ball and swallowed rather than chewed — sangati here, mudde in Old Mysore, kali in the Tamil uplands — together with the thin sour broth and country-chicken curry that necessarily accompany it.
How it diverges: Old Mysore eats mudde with bassaru and soppina saaru, both vegetable-based; Rayalaseema eats sangati with ulava charu and natu kodi pulusu, both far hotter and more meat-oriented; the Kongu version is looser and often sweetened. The grain and the technique are identical across all three, and the sauce is where the regions separate.
Kalamkari CorridorInternational
Mordant-dyed cotton, myrobalan preparation and natural dye chemistry — a single technical base that split into a pen-drawn temple craft on the ghat slope and a block-printed export craft on the delta coast, with the coastal branch working for Persian and later European buyers.
How it diverges: Srikalahasti draws freehand and its customer was a shrine, so its subjects are narrative and its scale is the temple hanging; Machilipatnam prints from blocks and its customer was a merchant, so its subjects are repeating florals and its scale is yardage. Only the dye chemistry is shared.
Nallamala Ghat Corridor
The forest itself — the Nagarjunasagar–Srisailam tiger reserve straddling the Krishna, the Chenchu communities on both banks, the same pilgrimage routes to Srisailam from north and south, and a shared honey, gum and minor-forest-produce economy.
How it diverges: The northern bank's forest was fragmented by the reservoir and the roads to it; the southern bank kept more continuous cover. The Chenchu ritual role at Srisailam and Ahobilam is recognised on this side in ways it is not on the other.
Tirumala Pilgrim Corridor
Pilgrim traffic on a scale that reorganises three states' transport calendars, along with the tonsure practice, the laddu, and Annamacharya's Telugu sankeertana repertoire sung to audiences that are frequently Tamil- or Kannada-speaking.
How it diverges: Tamil Nadu supplies the largest share of pilgrims after Andhra, and Tirupati town functions bilingually as a result; Karnataka's flow comes up the Bengaluru road and is more weekend-shaped. The temple's own liturgy is conducted in a Vaikhanasa tradition that is neither.
Shadow Puppet Corridor
Translucent hide figures worked from below behind a lit screen, performing Ramayana episodes all night — Tholu Bommalata here, Togalu Gombeyaata in Karnataka, Tholpavakoothu in Kerala, Thol Bommalattam in Tamil Nadu.
How it diverges: The Andhra figures are the largest and are coloured on both faces so the shadow carries colour; Kerala's are smaller, monochrome, performed only in Bhagavathy temples of the Palakkad belt and only from the Kamba Ramayanam, on a permanent stone koothu madam. Karnataka's troupes are itinerant and their figures are articulated differently.
Anantapur–Ballari Dryland Corridor
Groundnut and ragi cultivation on identical red gravelly soil, a continuous Telugu–Kannada bilingual belt through the Ballari gap, shared labour migration to Bengaluru, and the Vijayanagara inheritance on both sides of the Tungabhadra.
How it diverges: The Tungabhadra reservoir gives the Karnataka side an assured command that the Andhra side largely lacks, so the same soil grows paddy on one bank and rainfed groundnut on the other. The language line and the irrigation line do not coincide anywhere.
Traditions of Rayalaseema that continue across administrative borders, and how they diverge on each side. (7)