According to the complaint filed by ICICI Bank the burglars cut through the grill at the back of the branch building and broke into the strong room before looting the money around midnight, Malda ASP, Abhishek Modi said.
There was a total amount of Rs two crore in the strong room, the bank said in its complaint.
The bank guard who was on duty has been detained and is being interrogated, Modi said, adding, no arrests have been made so far.