MUMBAI, Feb. 25 -- A Borivali-based jeweller has received extortion threats allegedly in the name of the Lawrence Bishnoi gang, with the caller demanding up to Rs.30 lakh and threatening to kill him if the money was not paid. Police have registered a case against an unidentified person who sent WhatsApp messages and made calls from an international number. The first message was received on February 18, demanding Rs.30 lakh and warning that the jeweller would be killed if the ransom was not paid within 24 hours. The message allegedly referenced killing him "like Baba Siddique." According to the police, the next day, the accused called again and when the jeweller said he could not arrange the money, the demand was brought down to Rs.4 lakh. After receiving repeated threats over two days, the jeweller approached the police. "We have registered a case against an unknown person for threatening to kill the jeweller for extortion," said a police officer. In a similar incident on Saturday, the Vile Parle police arrested a man from Jharkhand for allegedly posing as the same gangster to extort money from a jeweller. Police are investigating potential links between these two cases....