India, May 1 -- The mysterious deaths of a family of four in Mumbai, initially blamed on an allegedly infected watermelon, have taken a dramatic turn after preliminary forensic findings reportedly pointed to possible poisoning, media reports said.

Investigators now suspect the summer fruit may not have been the real cause behind the tragedy that killed two parents and their teenage daughters within hours.

Family fell ill after late-night meal

Abdullah Dokadia, 45, who ran a mobile accessories shop, his wife Nasreen, 35, and daughters Ayesha, 16, and Zainab, 13, had hosted five relatives for dinner last Saturday, serving mutton pulao.

After the guests left unharmed, the family reportedly ate watermelon around 1 am. By 5 am, all four de...