31st Mountain Battery
Chronology
- 1907 raised as the 31st Mountain Battery
- 1920 became the 31st Pack Battery
- 1921 became the 31st (Dehra Dun) Pack Battery
- 1922 became the 111th (Dehra Dun) Pack Battery
- 1924 became part of the Royal Regiment of Artillery as the 131st (Dehra Dun) Pack Battery R.A.
- 1927 became the 11th (Dehra Dun) Indian Mountain Battery R.A.
- 1928 became the 11th (Dehra Dun) Mountain Battery R.A.
- 1939 became the 11th (Dehra Dun) Mountain Battery I.R.A