The Sahyadrikhand retroactively invented genealogies to slot Brahmins into caste hierarchy.

Evidence

The Sahyadrikhand is a latter-day addition to the Skanda Purana, the most volatile of Sanskrit texts, continuously expanding and incorporating new traditions. Wendy Doniger (1993, 60) terms it “surely the shiftiest, or sandiest, of all” puranas (collections of stories revolving around divinities and myths that allude to history though they cannot be accused of historicity). The Sahyadrikhand recounts the genealogy of several Maharashtrian Brahmin sub-castes to incorporate them into caste hierarchy. — Ambedkar, B R, Annihilation of Caste_ The Annotated…, 1079