The National Investigation Agency (NIA) arrested two 'wanted' close associates of Canada-based listed terrorist Arshdeep Singh Dhalla after they arrived at the Indira Gandhi International (IGI) airport in New Delhi on May 19, reports The Tribune. The duo, identified as Amritpal Singh alias Ammy and Amrik Singh, both hailing from Punjab, were arrested in an early morning operation by the NIA, whose team was waiting at the Airport for their flight to land. The duo came from Manila, Philippines, where they have been living, NIA officials said. The accused had non-bailable arrest warrants issued against them by the NIA Delhi Court in a case related to the unlawful and violent activities of banned organisations in India, said the NIA officials. The NIA investigations have revealed that the accused had entered into a criminal conspiracy to raise funds for the banned terrorist organization Khalistan Tiger Force (KTF), and also smuggle arms, ammunition and explosives for it from across the border. "The accused had been working for individual designated terrorist Arshdeep Singh Dhalla to promote violent criminal activities of the KTF in India," added the NIA. "In association with another notorious wanted accused Manpreet Singh alias Peeta, they had been involved in smuggling weapons from Pakistan and recruitment of youth to carry out acts of violence and terror in the country at the behest of the KTF. They were also part of an extortion racket for raising funds for the banned outfit. The accused used to identify extortion targets, including businessmen, and then threaten them into parting with huge amounts," said the agency.