The rupee traded between 83.62-83.65 on Friday, impacted by foreign fund inflows and importers' dollar demand, closing at 83.63 Thursday due to crude prices. Analyst Amit Pabari remains optimistic. Brent crude was $84.76. BSE Sensex and NSE Nifty dropped. Dollar index was 104.24. FIIs bought Rs 5,483.63 crore in shares. ECB might cut rates; European currencies fell.