Our company sales our commodities by taking to customer place by company's own/registered vehicles after place the order of a customer. After supply the items, the customer didn't take immediately the items and delaying the vehicles. For delaying the vehicle for a stipulated time, we;re charging penalty after that time per day basis. In the billing we're showing the commodity value and this penalty value and paying VAT for both.
Is this penalty for delaying is liable for Service Tax? Please study and give answers