The 25th Mountain Battery was an artillery battery of the British Indian Army. Raised in 1827, as the Bombay Foot Artillery, the 25th is the oldest Indian Mountain Battery, and the only one that served in the Second Sikh War at the Siege of Multan. The 25th was also the first Battery to serve outside India, when it took part in the 1868 Expedition to Abyssinia. They next took part in the Second Burmese War.