Import purchase treated under the head of Purchases e.g Import goods from USA $35000 and paid custom duty of Rs 9 lac on that so firstly u convert the usd to INR as per Bill of Entry Rate of Exchange mention on that so convert accordingly 35000X44.5 =1557500 Custom Duty =900000 Total purchase=2457500 if u want to freight & forwarding charges so u can do so also otherwise they can enter into separate head of direct expenses