According to the NCERT text, the 'Test Tube Baby' programme refers to a method where ova from the female and sperms from the male are induced to form a zygote under simulated conditions in the laboratory (In Vitro Fertilisation). This is followed by Embryo Transfer (ET), where the zygote or early embryo is transferred into the female genital tract (fallopian tube or uterus) for further development .