Dear sir,
i agree with you for the section 118 relating to presumption as to date
first let me tell you that the presumptions are only presumptions e.g, section 118 (f) that lost promissory note ,bill of exchange ,or cheque was duly stamped .- but stamping is not required for cheque
and section 120 estoppel against denying original validity of instrument -which clearly tells that no one is permitted to deny the original validity of the instrument as originally made or written
another thing as per section 137 NI Act the law of any other country regarding B/E,P/N,Cheques shall be presumed same as in india unless and untill contrary is proved
Section 13(2)Bill of Exchange Act 1949 which is a ACT OF MALASIA a bill is not invalid by reason only that it is ante dated ,or post dated or that it bears a date on sunday -now we can decipher the last sentence as if the cheque date is 30 th day of february (imagining) comes to sunday the cheque beomes valid as per section 137 of NI Act
I do not know if i am correct or not kindly correct me if i am wrong. whenever i visit the legal sites of other countries they all give validity for the same