આંધળાના ઘાથી ફાવું પડ્યું.

āṁdhaḷānā ghāthī phāvuṁ paḍyuṁ.

Literally: It happened by the blow of a blind man.
What it means: Said when someone achieves a success purely by luck rather than skill.
The English proverb Shah set beside it: A blind man may sometimes hit the mark.

Also said as

ગુજરાતી કહેવતસંગ્રહ (Gujarati Kahevat Sangrah) (1923) · read from the scan by machine — the Gujarati itself is unchecked · English is machine-made and nobody has checked it yet

Heard it differently, or know we've got the sense wrong? Tell us — that is exactly the kind of correction this needs.