Discharge of functions of Governor
Section 191(1) · 1999 Constitution (2004 edition)
What Constitution says
(1) The Deputy Governor of a State shall hold the office of Governor of the State if the office of Governor becomes vacant by reason of death, resignation, impeachment, permanent incapacity or removal of the governor from office for any other reason in accordance with section 188 or 189 of this constitution.
This is the 1999 Constitution as published in 2004. Later amendments aren't included yet, so a section may have changed since.
Original source
Official Gazette · CFRN 1999 official PDF · printed page 89. Original document
Release: draft-c8d50d87fae9. Source scope, review and corrections