The anti-caste Mandal was an all-caste-Hindu initiative with no Untouchable members.

Evidence

From the names, it appears that ‘Untouchables’ were not part of this distinctly caste-Hindu initiative, a point that Ambedkar draws our attention to in the Prologue of this address (p.189). The Mandal insisted on inter-dining and intermarriage. Membership, on paying two rupees as annual subscription, was meant for Hindus who took a vow to marry themselves or their children out of their caste. — Ambedkar, B R, Annihilation of Caste_ The Annotated…, 793

Categorization

• QUESTION: Why would an anti-caste organization include no Untouchables at all? This structural gap in the early movement invites investigation into who was allowed to fight caste and for whom.