"Early demand for the US dollar saw the rupee weaken to Rs. 132.00 levels against the greenback from its opening level of Rs. 131.85-90. However selling interest at this level capped the US dollar rise and the US dollar eased lower to close at Rs. 131.85-90, unchanged from its opening level. The market high was at Rs. 131.99 and the lowest was at Rs. 131.85, the Sri Lanka Forex Association said.