Leakage of revenue in Local Speed Post article

Local Speed Post articles are booked @ Rs.18- and other than local @ Rs.41-

If a no delivery S.O / B.O booking articles for the same pincode (600001 to 600001) amount showing as Rs.18-.

Whether it is correct? or it has to be configured correctly @ Rs.41-.

If a No Delivery PO with pincode 600001 from one end to another end of 600001 which should be delivered by other delivery PO and the articles despatched through ICH through bags, what is the cost of that speed post article?

Leakage of revenue may be arised for the above scenario. Patches should be deployed for curtailing leakage of revenue in all the Circles.

Lot of EPIC articles and other type of articles were despatched through bulk booking.