You rarely feel completely ready for UPSC, but preparation reaches a good stage when you can revise the syllabus confidently, solve PYQs with reasonable accuracy, and write structured answers within time. Readiness is more about familiarity with the exam pattern than finishing every possible topic.

If your mock test performance is stable, revision cycles are getting faster, and you understand your mistakes clearly, it usually means your preparation is on track. The goal isn’t perfection, but being comfortable with the syllabus and the exam format.
In UPSC, readiness often shows through consistency and control over your preparation, not through feeling fully confident.