Section 201 Indian Contract Act 1872
Section 201 of the Indian Contract Act 1872 is about Ratification may be expressed or implied. It is under “Revocation of authority” of CHAPTER X of the Act. CHAPTER X is titled AGENCY.
Termination of agency
An agency is terminated by the principal revoking his authority; or by the agent renouncing the business of the agency; or by the business of the agency being completed; or by either the principal or agent dying or becoming of unsound mind; or by the principal being adjudicated an insolvent under the provisions of any Act for the time being in force for the relief of insolvent debtors.
See also:
Section 200 Indian Contract Act 1872 (Ratification of unauthorized act cannot injure third person)