What is Knowledge requisite for valid ratification? Effect of ratifying unauthorized act forming part of a transaction? Section 198 and 199 of Indian Contract Act 1872
198. No valid ratification can be made by a person whose knowledge of the facts of the case is materially defective.
199. A person ratifying any unauthorized act done on his behalf ratifies the whole of the transaction of which such act formed a part.
Section 186 - Agent's authority may be express or implied
Section 187 - Definitions of express and implied authority
Section 188 - Extent of agent's authority
Section 189 - Agent's authority in an emergency
Section 190 - When agent cannot delegate
Sub-agents
Section 191 - Sub-agent defined
Section 192 - Representation of principal by sub-agent properly appointed
Section 193 - Agent's responsibility for sub-agent appointed without authority
Section 195 - Agent's duty in naming such person
Ratification
Section 196 - Right of person as to acts done for him without his authority
Section 197 - Effect of ratification Ratification may be expressed or implied
Section 198 - Knowledge requisite for valid ratification
Section 199 - Effect of ratifying unauthorized act forming part of a transaction
Section 200 - Ratification of unauthorized act cannot injure third person
Revocation of Authority
Section 201 - Termination of agency
Section 202 - Termination of agency, where agent has an interest in subject-matter
Section 203 - When principal may revoke agent's authority
Section 204 - Revocation where authority has been partly exercised
Section 205 - Compensation for revocation by principal, or renunciation by agent