Vote-allocation rules determined whether caste Hindus outnumbered or ignored Untouchable candidates.
Evidence
In Ambedkar’s reckoning, if the caste Hindus were given a clearer choice under the cumulative system, they would prefer to fight their battles with one another—a caste-Hindu voter could give all votes to his favourite caste-Hindu candidate as against rival caste-Hindu candidates, and leave the Untouchable candidates untouched. But if they were forced to give only one vote per candidate, in the distributive system, their hatred for a radical Untouchable candidate would outweigh, in their minds, the preference for a second, third or fourth caste-Hindu candidate. — Ambedkar, B R, Annihilation of Caste_ The Annotated…, 1316