Mumbai, Feb. 6 -- The rupee plunged 39 paise to close at an all-time low of 87.46 (provisional) against the US dollar on Wednesday, as global trade war concerns fuelled risk aversion among investors. Moreover, rate cut concerns by the Reserve Bank of India and broad strength of the American currency in the overseas market dented investor sentiments further. Rupee has declined over 2% so far in 2025. P13...