Both constitutions are post-colonial landmarks, but differ structurally:
| Feature | India | South Africa |
|---|---|---|
| Preamble | Sovereign, socialist, secular, democratic republic | Sovereign, democratic republic |
| Form of Government | Federal parliamentary republic | Unitary presidential republic |
| Head of State | President (indirect, electoral college) | President (elected by National Assembly) |
| Head of Government | Prime Minister (appointed by President) | President (also head of state) |
| Legislature | Bicameral Parliament (Lok Sabha + Rajya Sabha) | Unicameral Parliament |
| Top Court | Supreme Court | Constitutional Court |
| Socio-Economic Rights | Directive Principles (non-justiciable) | Justiciable rights (housing, healthcare, education) |
| Amendment | 2/3 Parliament + majority of states | 2/3 Parliament or referendum |
India emphasizes federalism and parliamentary accountability; South Africa centers on a strong presidency and enforceable social rights.