The instruments mentioned below shall be proved only by authentic document and no other evidence is admissible to prove them:—
(a) Public will;
(b) Record of printed open will;
(c) Record of approval of the closed will;
(d) Record of the opening of the closed will;
(e) Instrument of consent to the will by the spouse of the testator or the testatrix;
(f) Instrument of revocation of will;
(g) Instrument of rehabilitation of a person unworthy to succeed;
(h) Instrument of renunciation of inheritance;
(i) Instrument of declaration of heirship;
(j) Instrument of ante nuptial agreement;
(k) Deed of adoption under the law in force in Goa;
(l) Special Power of Attorney for acts to be done under this Act;
(m) Instrument of declaration of the option exercised under clauses (c) and (d) of subsection (4) of section 1.