The first four characters (ANDB) represents that it belongs to Andhra Bank. The fifth character (0) is reserved for future use. The last 6 characters (001647) represents that it belongs to Seawoods Mumbai branch in district Greater Bombay of Maharashtra.
IFSC code (ANDB0001647) 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 You can also verify the same by contacting bank authority of Andhra Bank since data here could be outdated.
Seawoods Mumbai branch of Andhra Bank is in Maharashtra state of India.
SHOP NO 37,38,39, SHREEJI HEIGHTS, MUMBAI, MAHARASHTRA-410706