The rupee today came back strongly against the US dollar by surging 17 paise to close at a two-week high of 64.44 on heavy dollar selling by exporters and banks.The domestic currency was further supported by unwinding of long-dollar positions by speculators against the backdrop of rising risk-on sentiment.In equities, benchmark Sensex too saw a smart rebound of 291 points, its biggest single session gain in nearly 6 weeks, and ended at a fresh two-week high of 29,656 buoyed by robust earnings outcome amid global rally.