The 10th Indian Division was an infantry division of the British Indian Army during World War I. It was formed in Egypt in December 1914 with three infantry brigades of Indian Expeditionary Force F. After taking part in the Actions on the Suez Canal, the division was dispersed as its brigades were posted away.
The 1st Indian Cavalry Division was a division of the British Indian Army which was formed at the outbreak of the First World War. It served on the Western Front, and was renamed the 4th Cavalry Division on 26 November 1916. In March 1918, the 4th Cavalry Division was disbanded; the British units remained in France and the Indian units were sent to Egypt to help form the 1st Mounted Division.
The 6th (Poona) Division was a division of the British Indian Army. It was formed in 1903, following the Kitchener reforms of the Indian Army.
The 12th Indian Division was formed in March 1915 from units of the British Indian Army. It formed part of the Tigris Corps, for service during the Mesopotamia Campaign of World War I. The Division arrived in Mesopotamia in April 1915 and remained there until it was broken up in March 1916. The Division's brigades remained in Mesopotamia as independent formations until forming part of the 15th Indian Division in May 1916. During its short existence it fought in a number of actions including the Battle of Shaiba between April 12–14, 1915, the Battle of Khafajiya between May 14–16, 1915, the Battle of Nasiriya between July 5, 13-14, 24 1915, where 400 British and Indian soldiers were killed in the battle and up to 2,000 Turkish Soldiers. The Occupation of Nasiriya and the affair at Butanuja, January 14, 1916.
The 34th Indian Brigade was an infantry brigade of the British Indian Army that saw active service in the Mesopotamian campaign in the Indian Army during the First World War. It was reformed for the Second World War as the 34th Indian States Forces Infantry Brigade.
The 5th (Mhow) Cavalry Brigade was a cavalry brigade of the British Indian Army that saw active service in the Indian Army during the First World War. Formed in November 1914, it served on the Western Front as part of the 2nd and 1st Indian Cavalry Divisions until it was broken up in March 1918.
The 6th Indian Cavalry Brigade was a cavalry brigade of the British Indian Army that saw active service in the Indian Army during the First World War. It took part in the Mesopotamian campaign and was broken up soon after the end of the war.
The Garhwal Brigade was an infantry brigade of the British Indian Army formed in 1902 as a result of the Kitchener Reforms. It was mobilized as 20th (Garhwal) Brigade at the outbreak of the First World War as part of the 7th (Meerut) Division and departed for France. It served on the Western Front until November 1915. It then moved to Egypt where it joined the 10th Indian Division, by now designated as 20th Indian Brigade. It left the division in March 1916 and thereafter served as an independent brigade in the Sinai and Palestine Campaign. It was broken up in 1920.
The 30th Indian Brigade was an infantry brigade of the British Indian Army that saw active service with the Indian Army during the First World War. It initially saw active service in Egypt in 1915, before transferring to Mesopotamia. It took part in a number of battles and actions before being besieged at Kut and going into Turkish captivity in April 1916.
The 33rd Indian Brigade was an infantry brigade of the British Indian Army that saw active service with the Indian Army during the First World War. It took part in the Mesopotamian campaign in 1915 before being broken up at the end of the year.
The 59th Indian Brigade was an infantry brigade of the British Indian Army that formed part of the Indian Army during the First World War. It remained in India throughout the war. It was not reformed for the Second World War.
The 50th Indian Brigade was an infantry brigade of the British Indian Army that saw active service with the Indian Army during the First World War. It served in the Mesopotamian Campaign on the Euphrates Front throughout its existence. It was not reformed for the Second World War.
The 42nd Indian Brigade was an infantry brigade of the British Indian Army that saw active service with the Indian Army during the First World War. It served in the Mesopotamian Campaign on the Euphrates Front throughout its existence. It was not reformed for the Second World War.
The 41st Indian Brigade was an infantry brigade of the British Indian Army that saw service with the Indian Army during the First World War. It served in the Mesopotamian Campaign on the Euphrates Front throughout its existence. It was not reformed for the Second World War.
The 35th Indian Brigade was an infantry brigade of the British Indian Army that saw active service with the Indian Army during the First World War. It took part in the Mesopotamian campaign and was disbanded shortly after the end of the war. It was not reformed for the Second World War.
The 37th Indian Brigade was an infantry brigade of the British Indian Army that saw active service with the Indian Army during the First World War. It took part in the Mesopotamian campaign and was disbanded shortly after the end of the war.
The 36th Indian Brigade was an infantry brigade of the British Indian Army that saw active service with the Indian Army during the First World War. It took part in the Mesopotamian campaign and later formed part of the North Persia Force. It remained with the Force until withdrawn in June 1921.
The 28th Indian Brigade was an infantry brigade of the British Indian Army that saw active service with the Indian Army during the First World War. Formed in October 1914, it defended the Suez Canal in early 1915, ended the Ottoman threat to Aden in July 1915, took part in the Mesopotamian Campaign in 1916 and 1917, before finishing the war in the Sinai and Palestine Campaign. It remained in Palestine until it was broken up in 1920.
The Ferozepore Brigade was an infantry brigade of the British Indian Army that formed part of the Indian Army during the First World War. It was formed in December 1914 as part of the 3rd Lahore Divisional Area for service on the North West Frontier and renamed as 44th (Ferozepore) Brigade in August 1915. It remained in India throughout the First World War but saw active service in the Third Anglo-Afghan War with the 16th Indian Division.
The 4th (Secunderabad) Cavalry Brigade was a cavalry brigade of the British Indian Army that formed part of the Indian Army during the First World War. It was formed as Secunderabad Cavalry Brigade in February 1915 to replace the original brigade that had been mobilized as the 9th (Secunderabad) Cavalry Brigade for service on the Western Front. It remained in India throughout the war.
British India 
British Indian Army