Below is a clear, structured, detailed, Notion-compatible explanation of Development Theory, suitable for UPSC Sociology.
Development theory explains how and why societies develop, why some remain underdeveloped, and what processes lead to economic, political, and social progress.
It is a broad field consisting of multiple theoretical traditions that evolved over time.
Development theory examines:
It is both descriptive (explains the world) and prescriptive (suggests solutions).
Focused on how "traditional" societies could become "modern".