By: Isuru Parakrama Colombo (LNW): The official exchange rate list of the Central Bank of Sri Lanka reveals a slight appreciation in the Sri Lankan Rupee against the US Dollar today (05). The buying price of the US Dollar has dropped to Rs. 285.61 from Rs. 287.42, and the selling price to Rs. 298.85 from Rs. 300.32. The Sri Lankan Rupee had slightly depreciated against the US Dollar last week, but indicates an appreciation this week. it also indicates appreciation against several other foreign currencies as well. The Sri Lankan Rupee, however, indicates slight depreciation against Gulf currencies.