0271164 is BSR code of IOB - Indian Overseas Bank Thiruvananthapuram Branch IOB Thiruvananthapuram Branch Address Gandhinagar-Thiruvananthapura Carmel Buildings, Gandhi Nagarcotton Hill, Vazhuthacaud Trivandrum ( Thiruvananthapuram ) District, KL - Kerala State, pin code 695014 Contact Details IOB - Indian Overseas Bank Thiruvananthapuram Branch email id IOB Bank Customer Number 1800 425 4445 & Email address : ATM [email protected], Internet banking email id : [email protected] , Credit Card : [email protected]