160 Field Regiment RA was formed in July 1941 with three batteries. The Regiment absorbed 161 Field Regiment in April 1942. It re-organised as 160 Jungle Field Regiment in October 1943 and reverted to a Field role in July 1944. 160 Field Regiment RA was re-designated 91 Field Regiment RA in April 1947.
Illustrations of the formation badges under which a unit served or supported are given. This is no guarantee that the unit used this formations badge.
| Jun 41 | Formed from A Battery 155 Field Regiment | Jhansi, India | |
| Jul 41 | Quetta Area | India | |
| Mar 42 |  |
14 Indian Division | Ranchi, India |
| Apr 42 |  |
26 Indian Division | India |
| Apr 43 | |
26 Indian Division | Arakan, Burma (Myanmar) |
| Oct 43 | Became Jungle Field Regiment | ||
| Jul 44 | Reverted to Field Regiment | ||
| Dec 44 | |
26 Indian Division | India |
| Jan 45 | |
26 Indian Division | Burma (Myanmar) |
| May 45 | |
26 Indian Division | India |
| Jun 45 | 101 Line of Communication | Ranchi, India |
Batteries
| Jun 41 | A, B, C |
| Mar 43 | 584, 585, 586 |
Equipment
| Sep 43 | 16 x 3.7 inch Howitzers, 16 x 3 inch Mortars (584 Battery) |
| Feb 44 | 4 troops 25 pdr – For Chindit operations |