Section 137 of The Indian Evidence Act, 1872
137. Examination-in-chief.—The examination of a witness by the party who calls him shall be called his examination-in-chief. Cross-examination.—The examination of a witness by the adverse party shall be called his cross-examination. Re-examination.—The examination of a witness, subsequent to the cross-examination by the party who called him, shall be called his re-examination.