The Kannada of this region is the register that standardisation settled on, which has an odd consequence — it is the least marked speech in the language and therefore the hardest to describe, and speakers here tend to think of themselves as having no accent. The plateau also holds three languages that are not Kannada at all: Sholaga and the Kuruba tongues in the southern forest, and a Dakhni Urdu that has been a city language in Mysuru and Bengaluru for four centuries.
Mysuru–Mandya KannadaDravidian, Southern
The register of broadcasting and of schoolbooks, with the fewest regional markers of any spoken Kannada. Its distinctive feature at village level is a set of agrarian and irrigation vocabulary that a city speaker will not know.
Bengaluru KannadaDravidian, Southern
Heavily code-mixed with English and, in the old pete, with Tamil, Telugu and Urdu. Its verb morphology is simplified in ways that older speakers notice and complain about, and it is the variety most non-native residents actually learn.
SholagaDravidian
A separate language, not a dialect of Kannada, spoken by a forest-dwelling community whose settlements lie inside protected areas. Its vocabulary for plants, honey and forest seasons has no Kannada equivalent.
Speakers: Tens of thousands, largely in the Biligirirangan and Male Mahadeshwara hills
Jenu Kuruba and Betta KurubaDravidian
Two related tongues of the Nagarahole and Bandipur forests — jenu means honey, and the name records the occupation. Both are under heavy pressure from Kannada schooling.
Mysuru and Bengaluru DakhniIndo-Aryan, Deccani Urdu
The city Urdu of the old quarters, carrying Kannada word order and vocabulary in a way that surprises speakers from the north. It is a household language in Mysuru's Mandi Mohalla and in parts of the Bengaluru pete.
Tamil and Telugu of the eastern beltDravidian
In Kolar, Chikkaballapur and the eastern taluks of Bengaluru Rural, Telugu is a household language of long standing, and Tamil is the language of communities settled in Bengaluru since the eighteenth century. Bilingualism here is old and unremarkable.