NDVH is non descent vaginal hysterectomy
means you remove the uterus
and if required ovaries also from vaginal route .In this case it is not necessary to have prolapse
and VH is vaginal hysterectomy done for prolapse with repair of the pelvic floor
TLH is total laparoscopic hysterectomy done from the abdominal route with the help of laparoscope.In NDVH there are no marks on abdomen.In TLH there will be port marks.
BSO is bilateral salpingoopherectomy means when you remove ovaries and adenexae along with uterus and cervix.