Kajal Shah and her paramour Hitesh Jain, both accused of killing Shah’s husband Kamalkant Shah by slow poisoning, had prepared a plan B in case Arsenic and Thallium did not work, sources in the crime branch said. This was revealed when cops were scanning the search history of the accused. “The history clearly indicates searches for various chemicals. The accused Jain had good knowledge of pharmacy. This indicates that they had a plan B in place,” an officer said.

Mumbai police’s crime branch, which is investigating the case, presented the accused before the Killa court on Monday and sought extension of their custody. Cops said so far they have studied around 45 per cent of the data retrieved from the phone and found suspicious activity. “He [Jain] was being questioned about these searches but he is not cooperating as he knows that his custody will come to an end,” an officer from Unit 9 of the crime branch said.