Three men were arrested on Monday night for allegedly siphoning off Rs 8 lakh from the bank account of a Salt Lake resident, police said.

The men accessed the bank account details of Sandeep Goyal, an HA Block resident, and transferred the money to an account from which they were making regular withdrawals, an officer of the Bidhannagar commissionerate said. All the men used to work for Goyal.

“The men got hold of Goyal’s Internet banking details and one of his identity cards. They used an authorisation letter to get a duplicate SIM card from a mobile phone store,” the officer said.

They allegedly downloaded the bank’s app on their cell phone and used Internet banking to transfer the amount. “They did the transfers minutes after getting the new SIM card,” the officer said.

The three have been charged under sections of the IPC, including 420 (cheating) and 406 (criminal breach of trust). They were produced in a Salt Lake court, which sent them to six days’ police remand.