Tuhay Bey became the bey of Or Qapı sometime between 1642 and 1644, an important position of the Crimean Khanate who was in charge of Or Qapı fortress - the gateway to the peninsula. By 1644 he had enough authority for the Khan of Crimea to entrust to him leadership of the major Tatar expedition against Poland. However, Tuhay Bey's army was intercepted by the Polish army under hetman Koniecpolski before reaching the densely populated regions of Ukraine and defeated in the First Battle of Okhmativ.