AI, Zinc Phosphide and 14,900 Capsules: Key Developments in Mumbai Muharram Poisoning Case

The investigation into the alleged Muharram capsule poisoning case has taken a new turn after the accused, Fayyaz Premji (39), allegedly told police during interrogation that he had used AI tools to research the hazardous effects of zinc phosphide before carrying out the act. His mobile phone has been sent for forensic examination, while investigators continue to examine his digital activity.

According to Mumbai Police, Premji allegedly claimed he viewed the world as his enemy and wanted to take revenge on society. Investigators are also probing how he procured zinc phosphide, whether he had any history of psychiatric treatment, his reported travel to Iran and Iraq, and whether he acted alone or had any accomplices. No larger conspiracy has been officially established so far.

What allegedly happened?

• Police allege Premji distributed capsules during the Muharram (Ashura) procession from Dongri to Rehmatabad Cemetery via Hancock Bridge, falsely claiming they were painkillers or immunity boosters.
• Investigators say he told participants the capsules would help relieve pain after Qama, a ritual observed by some mourners.
• Three alert women volunteers noticed his suspicious behaviour and informed police, who immediately issued loudspeaker announcements asking participants not to consume the capsules.
• Around a dozen people had already ingested the capsules before the warning was issued.

Victims and police action

The incident came to light after 26-year-old Salman Mohammad Islam Syed developed severe stomach pain, nausea and vomiting after consuming one of the capsules. He was admitted to Habib Hospital in Dongri for treatment. Police later said all those who consumed the capsules are now out of danger.

Premji was arrested and produced before a Mumbai court, which remanded him to two days of police custody. A case has been registered under the Bharatiya Nyaya Sanhita for allegedly administering poison with intent to commit an offence.

Key findings so far

• Police seized around 14,900 capsules from the accused.
• Investigators allege he had also ordered 30,000 empty capsules and about 50 kg of phosphorus, raising concerns over the scale of the alleged plan.
• Preliminary findings indicate the capsules contained zinc phosphide, a highly toxic chemical commonly used as a rodenticide.
• The seized capsules have been sent for forensic analysis to determine their exact composition.
• Police claim the accused admitted during questioning that he intended to poison a large number of people. However, these statements form part of the investigation and have not been tested in court.

What is zinc phosphide?

Zinc phosphide is a highly toxic rodenticide. When ingested, it reacts with stomach acid to release phosphine gas, which can severely damage the heart, lungs, liver, kidneys and brain. There is no specific antidote, making early medical treatment and supportive care crucial for survival.