Pune police filed a 5,053-page charge sheet on Saturday in the alleged murder of 26-year-old businessman Ketan Agarwal, who was allegedly pushed off Lohagad Fort on June 18 by his fiancee Siya Goyal, assisted by Chetan Chaudhary and Ritesh Hange; all three have been arrested. The charge sheet says the accused initially discussed seriously injuring Agarwal and explored hiring someone from outside Maharashtra, but dropped the plan fearing the hired assailant could expose the conspiracy or create problems; a person contacted at this stage has become a witness. They then decided to kill Agarwal themselves, watched murder films, used ChatGPT, and listened to podcasts on avoiding police detection. They also researched last year's Meghalaya honeymoon murder case involving Raja Raghuvanshi and Sonam. A fake Instagram account named 'Mahi', created using a photograph of a woman known to the accused, lured Agarwal to the fort with messages about a surprise birthday plan for Goyal; it was deleted after the incident. The accused conducted a recce around Lonavala, visiting Tiger Point and other locations, before selecting Lohagad Fort because of a death there in March last year, thinking they could make Agarwal's death appear like an accidental fall.