The whole purpose behind the setup of Inter-Bank Market
is basically Short-term Borrowings and Lendings by Banks from each
other.
The aim is to fulfill the Short-term Finance needs of
the Banks on urgent basis.
Such Borrowings and Lending takes place at the Bank's
own terms and Interest Rate charged by the Lending Banks from the
Borrowing Banks are know as "Inter-Bank Rates".
In simple terms we can say that its a Market where on
Bank-to-Banks transactions takes place.