NIA charge sheets 8 Khalistanis for killing Shaurya Chakra awardee on Pak-based handlers' orders The charge sheet, according to which Sandhu was killed by the KLF terrorists, was filed before a special NIA court. Share Via Email | A+A A- By PTI MOHALI: The NIA on Tuesday filed a charge sheet against eight terrorists of the outlawed Khalistan Liberation Force (KLF) for their alleged involvement in killing Shaurya Chakra awardee Comrade Balwinder Singh Sandhu at the direction of their Pakistan-based handlers, an official said. Sandhu, who fought terrorism in Punjab, was shot dead in October last year in Tarn Taran district.