Cash Credit Limit is a facility to withdraw money from a current bank account without having credit balance but limited to the extent of borrowing limit which is fixed by the commercial bank. The interest on this facility is charged on the running balance and not the borrowing limit which is given by bank.
It is a type of account in which you can withdraw amount even if there is no fund in your account. The bank sanctions a specific limit and your account can go in negative up to that limit. You have to pay interest only on the amount taken as loan
It is calculated by considering the total value of paid stock (Paid stock=Stock fewer Creditors) plus book debts (not more than 90 days old) and deducting margin from the same