Indian Overseas Bank IFSC Code KOLKATA - PORT Branch in KOLKATA can be used for internet banking for transferring funds between any two bank branches. This is IFSC Code for Indian Overseas Bank KOLKATA - PORT Branch in KOLKATA allocated by RBI. Before using this KOLKATA - PORT Branch KOLKATA Indian Overseas Bank IFSC Code, kindly cross check the respective bank website. This Indian Overseas Bank KOLKATA - PORT Branch IFSC Code in KOLKATA supporting net banking has its unique IFSC code. KOLKATA - PORT Branch KOLKATA Indian Overseas Bank IFSC Code is a unique code which helps to identity the bank location too. NOTE that only those branches of a bank which are approved by RBI can provide net transfer systems.