Key Feature of the Indian Judiciary
The structure of the Indian judiciary is notably characterized by its unified three-tier division, which ensures systematic and hierarchical administration of justice across the country.

Unified Three-Tier Division
- The Indian judiciary is structured into three main levels:
- **Supreme Court**: The apex body, which has the highest authority in interpreting the Constitution and adjudicating significant legal issues.
- **High Courts**: Positioned at the state level, these courts handle appeals from lower courts and have jurisdiction over a range of cases, including civil and criminal matters.
- **Subordinate Courts**: These include District Courts and various other lower courts that deal with local and less complex legal matters.

Significance of the Structure
- **Hierarchy**: The three-tier system creates a clear hierarchy, allowing for appeals and reviews, which enhances the fairness and thoroughness of judicial processes.
- **Uniformity**: This structure ensures that laws are applied uniformly across the nation, contributing to the rule of law and legal certainty.
- **Accessibility**: It allows citizens to seek justice at different levels, making the judicial system more accessible to the general public.

Comparison with Other Options
- **Dual System of Courts**: This is not applicable as India maintains a unified system rather than a dual one, which could lead to jurisdictional conflicts.
- **Exclusive Jurisdiction by the Supreme Court**: While the Supreme Court does have exclusive powers, it operates within a larger framework of subordinate and high courts.
- **Absence of Regional Courts**: Contrary to this option, the Indian judiciary includes High Courts that function regionally, addressing local legal issues.
In summary, the unified three-tier division is a fundamental characteristic of the Indian judiciary, promoting effective and equitable justice delivery.