Mumbai, March 28 -- The Indian rupee is likely to extend weakness on Friday tracking weak cues from global equities although easing dollar overseas could limit downside. Global sentiment remains fragile due to tariff concerns and amid caution ahead of the upcoming quarterly earnings season. Benchmark indexes Sensex and Nifty rose around half a percent each on Thursday despite heightened uncertainty surrounding U.S. trade policy. Yesterday, rupee weakened by 5 paise to close at 85.74 against the US dollar as month-end dollar demand from importers, coupled with the greenback's recovery against major currencies, weighed on the rupee. The US dollar strengthened after US president Donald Trump announced long-promised 25 per cent tariffs on autom...