Mumbai, Aug. 11 -- The Indian rupee is staying in a narrow band in opening trades on Monday. Rupee opened at Rs 87.56 per dollar and climbed to a high of 87.55 so far during the day. On Friday, rupee depreciated 13 paise to close at 87.71 against US dollar, weighed down by weak domestic equities as India-US trade deal uncertainty continues to dent domestic market sentiments. Indian shares fell sharply on Friday amid concerns that steep 50 percent U.S. tariffs on Indian goods may hurt the country's manufacture push and slow economic growth. The benchmark BSE Sensex ended down 765.47 points, or 0.95 percent, at 79,857.79 due to tariff worries and concerns over sustained foreign fund outflows. The broader NSE Nifty fell 232.85 points, or 0.9...