Malvani is the point of the region. Whether it is a dialect of Marathi or a variety of Konkani has been argued for a century, and the honest answer is that it sits between them and shares the features that matter with Konkani — most visibly the dative and accusative in -k, so to me is maka and to him is teka, where standard Marathi has mala and tyala. Speakers themselves usually call it Malvani and treat Marathi as the written language, so the census records almost all of them as Marathi speakers and the language has no official standing to lose. The stage is what changed its status — once Malvani filled auditoria in Mumbai, it stopped being something to correct out of a child.
MalvaniIndo-Aryan, Marathi–Konkani transitional
Spoken across Sindhudurg and southern Ratnagiri, with Konkani-type case endings, a distinct question vocabulary — khay for where, kityak for why — and an intonation that Marathi speakers recognise instantly. Also called Kudali after the Kudal country.
बोलने वाले: Returned under Marathi in the census; field estimates run to a few million including migrants
Northern Ratnagiri MarathiIndo-Aryan, Marathi
From Chiplun and Khed northward the speech is closer to standard Marathi, and the transition to Malvani is gradual rather than sharp — which is why any line drawn on the Savitri is an approximation.
Konkani of the southern edgeIndo-Aryan, Konkani
Around Vengurla, Sawantwadi and the Terekhol the speech runs continuously into Goan Konkani, and families on either side of the boundary understand each other without adjusting.
Kunbi and Gabit speechIndo-Aryan, Malvani group
Occupational varieties within Malvani, carrying vocabularies of cultivation and of fishing gear that a town speaker of the same dialect does not have.
Katkari and Thakar varietiesIndo-Aryan, Bhil–Konkani group
Spoken by forest and hill communities on the ghat slope, including the Thakar families who hold the Chitrakathi and puppetry traditions. Under heavy pressure from schooling in Marathi.