If articles are silent regarding interest on calls-in-arrears, the minimum rate of interest to be charged is 5%.
Explanation: Calls-in-arrears are defined as those dues which are not paid by the shareholders on the allotment or on calls within the fixed time.
The interest on Calls-in-arrears is to be paid by the defaulters and if nothing is provided in the articles then the interest of 5% p.a. is to be applied.