NEW DELHI, Jan. 23 -- Hours after a Delhi court acquitted former Congress MP Sajjan Kumar in a 1984 anti-Sikh riots case linked to Janakpuri and Vikaspuri, the families of the victims said on Thursday that they would challenge the verdict in the Delhi high court, calling it a grave miscarriage of justice. The case pertained to the November 1, 1984, killing of Sohan Singh and his son-in-law Avtar Singh in Janakpuri, and to a separate FIR relating to Gurcharan Singh, who was allegedly set ablaze by a mob in Vikaspuri on November 2, 1984. Both families lived in the Navada area of west Delhi at the time. Sohan Singh lived with his sons Harvinder and Tejinder and daughters Jaspal and Kamaljeet, while his daughter Harjeet and son-in-law Avtar Sin...