In 1947, it was allocated to the Pakistan Army, where it continues to exist as 15th Battalion The Punjab Regiment.

[2] Subsequent to the reforms brought about in the Indian Army by Lord Kitchener in 1903, the regiment's designation was changed to 33rd Punjabis.

During the First World War, the 33rd Punjabis served in Egypt, France, Aden and German East Africa.

In 1921–22, a major reorganization was undertaken in the British Indian Army leading to the formation of infantry groups of four to six battalions.

During the Second World War, the battalion fought in the Malayan Campaign and was taken prisoner by the Japanese on Singapore Island following the British surrender on 15 February 1942.