A family in India who died after eating watermelon were actually killed by rat poison, forensic investigators said on Friday, two weeks after the deaths caused widespread concern about the possible dangers of eating the fruit. Authorities in the western Indian state of Maharashtra are yet to decide whether to register the case as homicide or an accident, and have not disclosed how the watermelon came to be laced with poison. In the early hours of 27 April, Abdullah Dokadia, 45, his wife Nasreen, 35, and their daughters Ayesha, 16, and Zainab, 13, died at their home in Pydhonie in south Mumbai ’s Bhendi Bazaar area. The family had hosted nine guests for dinner that evening and served biryani. After the relatives left, the four ate watermelon at around 1am . By 5am all were severely ill with vomiting, stomach pain and diarrhoea. They were taken to a local hospital in a semi-conscious state, police said, and all died soon after.…