Factual error: H Division moved into a new station house in 1897. This did not happen until 9 March 1970. In previous episodes the station is factually incorrect as well, as the previous station was deemed unfit for purpose in 1882, and they obtained the land of the former Garrick theatre in 1886 and a new station started building but it was not completed until 1890/91.
Factual error: The Risaldar-Major is in command of the Bengal Lancers. The commandants of Indian regiments were actually British, as were many of the officers. The Risaldar-Major was the senior Indian officer of a cavalry regiment, but held a similar position to the Regimental Sergeant Major in a British regiment. He certainly did not command it. Although commanding great respect, he was junior to all the regiment's British officers.