ANY BANK IN A COUNTRY HAVING AN ACCOUNT WITH A BANK IN A FOREIGN COUNTRY IS CALLED NOSTRO ACCOUNT. IN OTHER WORDS AN INDIAN BANK MAINTAINING AN ACCOUNT  WITH A STANDARD CHARTED BANK SINGAPORE IN SINGAPORE DOLLORS IS KNOWN AS NOSTRO ACCOUNT.

CONVERSLY STD BANK MAINTAINING AN ACCOUNT WITH OUR INDIAN BANK BOMBAY BRANCH IN INDIAN RUPPEES IS KNOWN AS VOSTRO ACCOUNT.
 
IF ANY OTHER BANK FOR THE PURPOSE OF A TRANSACTION REFER TO AN ACCOUNT MAINTAINED BY YET ANOTHER BANK IN SOME OTHER COUNTRIES IT IS KNOWN AS LORO ACCOUNT.