The League actively encouraged Indian Muslims to enlist in the British Indian Army, and many thousands of Muslims did so. The League also organized fundraising campaigns to support the war effort. In addition, the League worked to counter pro-German sentiments among Indian Muslims, and to promote loyalty to the British Empire.
Overall, the Muslim League played a valuable role in aiding the British war effort during World War I. This helped to improve relations between the League and the British government, and paved the way for further negotiations on Muslim rights after the war.