The Special Investigation Team probing Sunanda Pushkar's murder is now seeking to carry out a lie detector test on 3 witnesses, including Shashi Tharoor's help and driver. Calling Narain Singh (domestic help), Bajrangi (driver) and Shashi Tharoor's friend Sanjay Dewan "suspects" in the case, police have told a Delhi court that "it has been found that all three are concealing material facts and didn't disclose several issues related to the death of Sunanda Pushkar".