The CBI on Wednesday told a special court here that Rajesh and Nupur Talwar killed their daughter Aarushi and domestic help Hemraj in a fit of rage after finding them in a compromising position, a claim strongly refuted by the dentist couple.

Talwars contested CBI's claim, saying that sex is no big deal in elite society and does not entail murders.

Resuming its argument on framing of charges in the May 2008 twin murder case, CBI counsel R K Saini told Special Judge Shyam Lal that on the fateful day Talwars had returned home late in the evening and not finding Aarushi and Hemraj in the living room went to their daughter's room.

Saini said the room was locked from inside but Talwars opened it from outside with another key and found their daughter and Hemraj in a compromising position and got infuriated.

An angry Talwar picked up a golf stick and repeatedly hit Hemraj and his daughter with it, Saini said.

As the two fell unconscious, Talwars slit their throat with a surgical blade, a work done with the precision expected of experts like them, he said.

Nupur, however, personally, dismissed the charge saying that they belong to elite class of society where one does not kill anyone for indulging in such sexual acts.

She added that they dearly loved their daughter and there was no question of killing her even after finding her in a compromising position as the matter could have been resolved.