Several terrorists, who have instigated attacks against India, have been killed by unidentified assailants on foreign soil. Recently, the killings of Khalistani terrorists Hardeep Singh Nijjar and Sukhdool Singh aka Sukha Duneke in Canada have made headlines amid strained relations between New Delhi and Ottawa.Several terrorists, who have instigated attacks against India, have been killed by unidentified assailants on foreign soil. Recently, the killings of Khalistani terrorists Hardeep Singh Nijjar and Sukhdool Singh aka Sukha Duneke in Canada have made headlines amid strained relations between New Delhi and Ottawa.