In a democracy social divisions are reflected in many ways like it is natural that political parties would talk about these divisions:
(i) make different promises to different communities,
(ii) look after the due representation of various communities,
(iii) make policies to redress the grievances of the disadvantaged communities.
(iv) In the same way social divisions affect voting in most countries. People from one community tend to prefer some party more than others. In many countries there are parties that focus only on one community.