Mumbai, Feb. 17 -- The Indian rupee could extend last week's gains in opening trades on Monday tracking persistent weakness in greenback overseas. On Friday, rupee settled 21 paise higher at 86.71 against the US dollar on Friday supported by easing American currency and positive macroeconomic numbers. The dollar index is quoting at 106.53. The aggressive dollar chase was halted after the US government announced the implementation of reciprocal tariffs on April 1, giving trading partners some relief. However, incessant selling of domestic equities by foreign institutional investors weighed on the local unit. Indian shares extended losses for an eighth straight day running on Friday despite positive cues from global markets, a weaker dollar a...