Section 231: On charge of rape conviction under defilement, incest, unnatural or indecent assault may follow

Where on a trial for rape, defilement, incest, unnatural or indecent offences against a person, the facts proved in evidence can ground conviction for an indecent assault and not the offence with which the defendant is charged, he may be convicted of the offence of indecent assault, and be punished as if he had been convicted on a charge or an information charging him with the offence of indecent assault.