Literature reveals a multifaceted use of the term “caste,” where it functions both as a concrete descriptor of social and occupational groups and as a broader metaphor for entrenched social divisions. In ethnographic and sociological works, such as those by Edgar Thurston, caste is meticulously catalogued—from specific titles like Chetti [1] and Mūppan [2] to divisions within groups marked by specialized occupations and ritual customs [3], [4]. At the same time, sociological studies and literary narratives extend the concept to critique hierarchical systems that segregate human beings, as seen when caste is compared to slavery or used to justify racial distinctions [5], [6]. Fictional accounts further capture the personal and cultural impact of caste divisions, as characters navigate affiliations and prejudices inherent in their caste identities [7], [8]. This body of literature thus offers both a detailed account of historical caste formations and a critical reflection on its ongoing social and moral implications.