PATNA, Sept. 24 -- The Economic Offences Unit (EOU) of Bihar Police busted an international phone call racket after conducting raids in Samastipur, Purnea, and Varanasi (Uttar Pradesh) on Tuesday, officials said. Three people were arrested in the operation, including a Point of Sale (POS) operator, while the mastermind remains at large. Those arrested have been identified as Chandrabali Singh (Samastipur), Munna Kumar (POS operator, Samastipur), and Qasif Mehfooz Sheikh (Purnea). According to officials, international phone calls were being illegally routed as local calls, with the network suspected of involvement in cybercrimes. This is the third such racket unearthed by the EOU, following two earlier cases in which several persons were arrested. The investigation began after the Department of Telecommunications (DoT) alerted the EOU about the use of illegal SIM boxes-devices containing multiple SIM cards used to route international calls as local calls. The gang allegedly deployed SIM boxes to facilitate investment frauds and digital arrest scams, generating nearly 1.2 lakh fraudulent calls per month from Cambodia, Thailand, and other countries. ADG (EOU) NH Khan said multiple teams, led by DIG Manavjit Singh Dhillon, carried out the raids. The first raid took place at the residence of Chandrabali Singh, who disclosed the names of the alleged mastermind Anjani Kumar Mahto and BSNL operator Mohammad Sahzaad....