Indian Overseas Bank IFSC Code POSTA 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 POSTA Branch in KOLKATA allocated by RBI. Before using this POSTA Branch KOLKATA Indian Overseas Bank IFSC Code, kindly cross check the respective bank website. This Indian Overseas Bank POSTA Branch IFSC Code in KOLKATA supporting net banking has its unique IFSC code. POSTA 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.