Police investigations into the poisoning incident at a Muharram procession in Mumbai focus on how the accused allegedly prepared and obtained the lethal substance. According to NDTV, police sources state that Premji conducted extensive research using Google and AI about the effects of different dosages of zinc phosphide on the human body. The sources also say the accused had easy access to zinc phosphide, a highly toxic pesticide. Investigators are treating the preparation of poison pills as a central part of the case and are examining how the materials were sourced and how the accused planned the incident. Authorities are also investigating the sequence of events leading to the distribution of the pills and are working to determine whether others were involved. The information reported by NDTV is based on police sources and reflects the current direction of the investigation rather than a court finding or final conclusion.