Political equality in liberal democracies is not only about equality of opportunity to participate in the political decision-making process, but also about carrying a vote value that is equal to that of other members of the community. According to the legal scholar Pamela S. Karlan, the right to vote can be diluted quantitatively and qualitatively by redrawing the boundaries of the constituency in an electoral system. Quantitative dilution happens when votes receive unequal weight due to huge deviations in the population among the constituencies. Qualitative dilution happens when a voter’s chance of electing a representative of their choice is reduced due to gerrymandering (redrawing of boundaries to favour a candidate/party). Thus, delimitation of constituencies plays a major role in strengthening or weakening democracy.
Safeguards
To avoid these dilutions, our Constitution framers envisaged appropriate safeguards to ensure equal political rights for all citizens. Articles 81 and 170 of Constitution state that the ratio of the population for the Lok Sabha and State Legislative Assembly constituencies shall be the same as far as practicable. Article 327 empowers Parliament to make laws related to the delimitation of constituencies, which cannot be questioned in a court of law. Based on this, the government forms an independent delimitation commission headed by a retired Supreme Court judge to avoid qualitative dilution. Articles 330 and 332 guarantee reservation of seats for Scheduled Castes (SCs) and Scheduled Tribes (STs) in Parliament and State Legislative Assemblies, which need to be kept in mind during delimitation. Delimitation of constituencies needs to be carried out regularly based on the decennial Census to maintain equality of the vote value as far as practicable.