[Koha] Generating fine in every renewal

[JITHIN N]

Dear community
We are using Koha 22.11.07. In our Koha circulation rule patron category
have maximum 5 time renewal allowed (Renewal Count) with time period of 10
days (Renewal period). In administration menu  *Renewal Period Base* is
calculated based on old due date  of book and for late return every day 1
rupee is calculated as fine. A patron have overdue of a book which is not
returned till date with 30 days late,  his account shows accruing fine of
30 rupees. when the staff renew the book,  along with 30 rupees an amount
of 20 rupees creating with a total of 50 rupees. If again renew the book it
again generating an amount 10 rupees along with 50 rupees with total of 60.
Since the account have already fine till the date why Koha generating  fine
again  based on new due date of renewal. is it a bug or any configuration
need to change?