Currently fixed deposit (FD) rates in India are around 9% p.a with various Indian banks. I have observed that there are tenure brackets which start from 7 days till 5 years. There is always a bracket where interest rates peak which is 390 days. What is logic of having peak interest rates at 390 days? Why not any other tenure?
I have been trying to figure this mystery around 390 days for sometime and finally came across this article on mystery of odd FD tenures
It seems that this is linked to loan cycle for the banks -
These time periods are meant to match the bank's asset and liability in a particular bucket. Say, it has higher demand for one-year loans, then it will offer a 390-day deposit. Similarly, the 700-day deposits are meant to match the asset and liability for two-year loans.
Simply put, banks are ensuring they have money to give loans by extending the tenure of matching FDs. As the FDs mature a little later, it gives them more breathing space to get the money back from the borrowers and return it to the depositors.