The National Investigation Agency (NIA) would again take the voice samples of the nine militants of Khalistan Zindabad Force (KZF) for their involvement in the smuggling of arms using drones on the International Border (IB) with Pakistan, reports The Tribune on January 31. As per the report, barring Gurdev Singh, all the militants appeared in an NIA court in Mohali District on January 30. Three KZF militants – Balbir Singh alias Binda, Harbhajan Singh and Romandeep Singh were arrested by the NIA on a production warrant. The NIA had also registered cases against Akashdeep Singh, Balwant Singh, Shukhdeep Singh, Mann Singh, Sajanpreet Singh, Gurdev Singh and Malkit Singh. The case was earlier being investigated by the State Special Operation Cell, Amritsar. At that time, four militants including Balbir Singh, Harbhajan Singh, and Balwant Singh, were arrested along with the arms and other material near Chola Sahib on September 22, 2019. Later, the case was handed over to the NIA.