Registration Act, 1908
20. Documents containing interlineations, blanks, erasures
or alterations
(1) The registering officer may in his discretion refuses to
accept for registration any document in which any interlineation, blank,
erasure or alteration appears, unless the persons executing the document attest
with their signatures or initials such interlineation, blank, erasure or
alteration.
(2) If the registering officer registers any such document, he shall,
at the time of registering the same, make a note in the register of such
interlineation, blank, erasure or alteration.