The Lohagad Fort murder case took a dramatic turn after Ketan Agarwal's sister began questioning inconsistencies surrounding his death. Her suspicions helped uncover a chilling conspiracy allegedly involving Ketan's fiancée, Siya Goyal, and her lover, Chetan Chaudhary. From a failed murder attempt and a missing passport to the final push at Lohagad Fort, here's how the shocking plot unravelled and led investigators to the truth.