The Indian rupee strengthened on Wednesday, closing at 89.87 against the US dollar, marking a gain of 31 paise and snapping a four-day losing streak. This appreciation was attributed to likely intervention by the Reserve Bank of India (RBI) selling dollars, a weaker US dollar index, and a drop in global crude oil prices. Despite domestic equity markets closing lower, the rupee found support, with analysts suggesting a range of 89.50-90.50 for January.