[3] His wife was Mrs. Sarbjit Singh Kalha from Sarguja, Central Provinces, British India.

[8] In 1944, while holding the rank of a Major, Kalha was awarded the DSO for his actions in the Battle of the Ngakyedauk Pass in Arakan, during the Burma Campaign.

[9] His 'skilful planning and bold execution' against the Japanese, for which he won the DSO, opened up the Ngakyedauk Pass to the besieged 7th Indian Infantry Division.

[5] A short clip of him just after receiving his DSO from King George VI is available from British Pathe.

[12] On 11 January 1946, Lt. Col. Kalha was killed in an ambush on a convoy he was moving in through Soerabaja/Surabaya in Java, Dutch East Indies.