New Delhi: Delhi Police Commissioner B.S. Bassi on Monday said that the Special Investigation Team (SIT) has conducted polygraph test on six persons in connection with the death case of Sunanda Pushkar.

'Our investigation is continuing. During investigation, whatever requires to be done will be done. And so far, we have already carried out polygraph test on six persons. If there is any requirement, we will conduct further tests,' Bassi told the media here.