Fixed assets

Dear All,

Our company imported a IT asset. It made advance payment say US$ 1000 at the exchage rate of 44. At the time of invoice as well as receipt of material, the exchange rate is say 45. What accounting entries to be passed in the books and what treatment to be given for exchange gain/loss. Please answer at the earliest quoting reference to AS or schedule VI (existing or revised) or any other guidance note.

Thanks