LUCKNOW, June 7 -- National Investigation Agency (NIA) investigators on Friday initiated a fresh custodial interrogation of six accused arrested in a Pakistan-linked espionage and terror conspiracy case after a special court in Lucknow granted the agency five days of custody remand. The six accused including Pradeep, Raj Valmiki, Shiva Valmiki, Hritik Gangwar, Sane Ism alias Maqbool Pathan and Shivraj, were produced before the special judge (NIA)/additional sessions judge, Court No. 3, and the court allowed the agency to take them into custody from June 5 to June 10 for further questioning. According to NIA officials, the fresh round of interrogation is aimed at uncovering the full extent of the alleged network, identifying Pakistani handlers and establishing the organisational links of the accused. Investigators are also seeking to gather additional evidence regarding the alleged transmission of sensitive information and logistical support provided to foreign-based operatives. The agency alleged that the accused were acting at the behest of Pakistan-based handlers and had installed solar-powered live-streaming cameras at strategically important locations, including railway stations in Delhi and Sonepat, providing remote access to foreign operatives....