Mumbai, Mar 24 (UNI) The rupee gained today by thirteen paise to 65.39 versus the US dollar on selling of US Dollars from banks and exporters, dealers at the Forex Market said. In opening trade, the domestic unit rose by five paise to 65.47. Till the end of the session, it rallied by 13 paise to 65.39 as compared to its last close. Weak dollar against other currencies overseas ane strong equity market kept the indian currency firm. It registered day high and low at 65.35 and 65.51 respectively, they added UNI NV SM1712