THE PENAL CODE, 1860 (ACT NO. XLV OF 1860).
CHAPTER III- OF PUNISHMENTS
55. In every case in which sentence of 20[ imprisonment] for life shall have been passed, 21[ the Government] may, without the consent of the offender, commute the punishment for imprisonment of either description for a term not exceeding 22[ twenty] years.
National penalties - life imprisonment
EDIT.