To end the day, the rupee settled at 67.02 against the American currency - its lowest level since August 30.
The home unit witnessed a sudden plunge in morning trade on reports that the Commerce Ministry is working on a strategy that included proposing the Finance Ministry devaluation of the rupee to give a boost to sagging goods and services exports.
The rupee opened a tad higher at 66.88 compared to Wednesday's closing value of 66.89 at the Interbank Foreign Exchange (forex) market and continued its ascend to touch a intra-day high of 66.82 on initial dollar selling.
But it suffered a setback in late morning deals and dropped to 67.0750 before recouping some early losses to end at 67.02, showing a fall of 13 paise, or 0.19 per cent.
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The US dollar index, which measures the greenback's strength against a trade-weighted basket of six major currencies, was down 0.16 per cent at 95.17.
The RBI fixed the reference rate for the dollar at 67.0248 and euro at 75.3627.
It also dropped further against the euro to finish at 75.34 from 75.10 earlier.
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