Pune, June 28 -- The grandfather of Pune realtor Ketan Agarwal, who police allege was pushed to death at Lohagad Fort, joined a candlelight march organised by residents of Belmondo Housing Society in Gahunje on Saturday, demanding justice for the 25-year-old. "We were betrayed by our own people, whom we had known for several years," said Devichand Agarwal, who became emotional while addressing the gathering. Ketan's family members, friends and residents of the housing society participated in the march, even as Pune rural police questioned the parents and brother of accused Siya Goyal for several hours in connection with the investigation. Devichand alleged that Siya's family had pressured her into agreeing to marry Ketan. "We want the police to investigate everyone involved in this marriage. Siya and Chetan Chaudhary should be awarded the strictest punishment under the law," he said. Ketan died on June 18 after falling from Lohagad Fort. Police are investigating it as a suspected murder case. His fiancee, Siya, and her friend, Chetan Chaudhary, have been arrested and are currently in police custody as the probe continues. Ketan's mother sought stringent punishment for the accused and action against everyone responsible for the incident. Ketan's father, Vishal Agarwal, said, "We will continue to fight until we get justice," he said....