The first four characters (BARB) represents that it belongs to Bank of Baroda. The fifth character (0) is reserved for future use. The last 6 characters (SANTOS) represents that it belongs to Santoshpur Kolkata branch in district Kolkata of West Bengal.
IFSC code (BARB0SANTOS) can be found on the front page of the account holder's passbook or in cheque leaf. You can also verify the same by contacting bank authority of Bank of Baroda since data here could be outdated.
Santoshpur Kolkata branch of Bank of Baroda is in West Bengal state of India.
B- 195, SURVEY PARK,SANTOSHPUR, KOLKATA, WEST BENGAL - 700 075