Persons who are not parties to a document, or their representatives in interest, may give evidence of any facts tending to show a contemporaneous agreement varying the terms of the document.
Illustration
A and B make a contract in writing that B shall sell A certain cotton, to be
paid for on delivery. At the same time they make an oral agreement that three
months credit shall be given to A. This could not be shown as between A and B,
but it might be shown by C, if it affected his interests.
Section 90A Presumption as to electronic records five years old
Section 92 Exclusion of evidence of oral agreement
Section 93 Exclusion of evidence to explain or amend ambiguous document
Section 94 Exclusion of evidence against application of document to existing facts
Section 95 Evidence as to document unmeaning in reference to existing facts
Section 96 Evidence as to application of language which can apply to one only of several persons
Section 98 Evidence as to meaning of illegible characters, etc
Section 99 Who may give evidence of agreement varying terms of document
Section 100 Saving of provisions of Indian Succession Act relating to wills