India, May 7 -- Almost 10 days after four members of a family in south Mumbai died allegedly due to food poisoning, police on Thursday said the deaths were caused by rat poison.

Confirming the fresh twist in the case, police said that the Forensic Science Laboratory (FSL) report has confirmed the presence of zinc phosphide in viscera (liver, kidney, spleen), stomach contents, bile, and abdominal fat samples of the deceased identified as Abdulla Dokadia (44), his wife Nasrin (35) and their daughters Aayesha (16) and Zaineb (13), PTI reported.

The couple and their teenage daughters had reportedly died on April 27 after a dinner meal at their relative's place the previous night, HT reported earlier. Ruling out the case as a suicide pact, t...