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 (001861) represents that it belongs to Madakasira branch in district Anantapur of Andhra Pradesh.
IFSC code (ANDB0001861) 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 You can also verify the same by contacting bank authority of Andhra Bank since data here could be outdated.
Madakasira branch of Andhra Bank is in Andhra Pradesh state of India.
DNO 15/360/2, GPR COMPLEX, AMARAPURAM ROAD, MADAKASIRA ANANTAPUR DT - 515301