Kunal Chakrabarti's: 'Religious Process: The Purāṇas and the Making of a Regional Tradition' (OUP, 2001) is the best in depth account of this kind of phenomenon that I have encountered. It is about Bengal Purāṇas but applies widely to other contexts.

On Mon, Jul 6, 2015 at 3:33 PM, Paolo Eugenio Rosati <paoloe.rosati@gmail.com> wrote:
Dear Indologist-friends,
 
Maybe someone can advice me about secondary literature on the use and incorporation of tribal/local myths into Puranic (and/or Tantric) mythology as "Hindu-Brahmanic" 's tool for the absorption of local/tribal traditions with a specific political purpose.
 
Best,
Paolo

--
Paolo E. Rosati
Oriental Archaeologist
PhD candidate in Civilisations of Asia & Africa
Section: South Asian Studies
Dep. Italian Institute of Oriental Studies (ISO)
'Sapienza' University of Rome
Skype: paoloe.rosati

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Jesse Ross Knutson PhD
Assistant Professor of Sanskrit and Bengali, Department of Indo-Pacific Languages and Literatures
University of Hawai'i at Mānoa
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