PUNE, June 28 -- Devichand Agarwal, grandfather of Pune realtor Ketan, who was allegedly pushed to death at Lohagad Fort by his fiance Siya Goyal and her boyfriend Chetan Chaudhary, on June 18, joined a candlelight march organised by residents of Belmondo Housing Society in Gahunje (where the Agarwals reside) on Saturday, demanding justice for the 25-year-old. Meanwhile, police on Saturday questioned Siya's parents, Pravin and Puja Goyal, and brother Sahil, for several hours at the Lonavla Rural police station, officers familiar with the matter said. P7...