If, after the grant of letters of administration with the will annexed, a codicil is discovered, it may be added to the grant on due proof and identification, and the grant may be altered and amended accordingly.
PART IX PROBATE, LETTERS OF ADMINISTRATION AND ADMINISTRATION OF ASSETS OF DECEASED · CHAPTER III.—Alteration and Revocation of Grants
Section 262: Procedure where codicil discovered after grant of administration with will annexed
The Indian Succession Act, 1925