Mumbai, Aug. 8 -- The Indian rupee depreciated 13 paise to close at 87.71 (provisional) against US dollar on Friday, 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 0.95 percent, to 24,363.30, marking the sixth straight weekly loss for the index. Moreover, President Donald Trump's aggressive move, which kick...