Colombo (LNW): The Sri Lankan Rupee indicates further depreciation against the US Dollar today (21) in comparison to last week, as revealed by the official exchange rates list issued by the Central Bank of Sri Lanka (CBSL). Accordingly, the buying price of the US Dollar has increased to Rs. 316.72 from last week’s Friday’s Rs. 316.28, and the selling price to Rs. 329.59 from Rs. 329.49. The Sri Lanka Rupee, however, indicates appreciation against several other foreign currencies, whilst indicating depreciation against Gulf currencies.