Section 198 Indian Contract Act 1872
Section 198 of the Indian Contract Act 1872 is about Knowledge requisite for valid ratification. It is under “Ratification” of CHAPTER X of the Act. CHAPTER X is titled AGENCY.
Knowledge requisite for valid ratification
No valid ratification can be made by a person whose knowledge of the facts of the case is materially defective.
See also:
Section 197 Indian Contract Act 1872 (Ratification may be expressed or implied)