New Delhi: The National Investigation Agency (NIA) will conduct lie detector-test on Gurdaspur Superintendent of Police Salwinder Singh, who was questioned in connection with the Pathankot attack, today.

A Special Delhi court had yesterday granted permission to NIA to conduct the test. Allegedly kidnapped and released by terrorists before the Pathankot terror attack, Singh was questioned for the fifth consecutive day last week at the NIA headquarters in Delhi.