This uprising was against the rule of the British East India Company, which functioned as a sovereign power on behalf of the British Crown, and had been in place for nearly 250 years. To the British it was termed the Indian or Sepoy Mutiny, but to Indians it was the First War of Independence.

Indian Mutiny (1857-1859)
Briscoe, Henry Harrison16-Nov-1855
The purchase was made for an Ensign commission in the 81st Regiment of Foot (Loyal Lincoln Volunteers). The Regiment had embarked earlier for India on 1 July 1853.
10-Dec-1855It is likely that Henry was among "a draft arrived ... of 1 Lieut., 2 Ensigns and 53 privates.
22-Jul-1856He was promoted by purchase of Lieutenant commission: "Ensign Henry Harrison Briscoe to be Lieutenant, by purchase, vice Weir, whose promotion, by purchase, on the 18th April 1856, has been cancelled. (Dated 22 July 1856.")
1858"Captain Chichester, Lieuts. Musgrave, Faircloth, Speedy, Briscoe and Jackson and Qr Master Correll, served in the Eusoofxie expedition in 1858."

He was a recipient of Indian Mutiny Medal for his service.
12-Mar-1861He retired from the army and it was noted "81st Foot, Ensign Henry Maturin to be Lieutenant, by purchase, vice Henry Harrison Briscoe."
1-Jun-1872The London Gazette recorded that Lieutenant Henry Harrison Briscoe resigns his Commission.