The Indian rupee has opened on a negative note on Monday morning despite weakness in US dollar overseas. Mixed cues from equities and rising crude oil prices are seen weighing on the domestic unit. On Friday, rupee appreciated 11 paise to settle at 83.34 against the US dollar amid recent inflow of foreign funds. Benchmark indexes Sensex and Nifty surged over 2 percent each to hit record high levels last week despite concerns about elevated valuations. Meanwhile, India's forex reserves jumped by USD 816 million to USD 653.711 billion for the week ended June 21, the RBI said on Friday. In the previous reporting week, the overall reserves had dropped by USD 2.922 billion to USD 652.895 billion. The all-time high for the reserves is at USD 655.817 billion achieved on June 7. For the week ended June 21, foreign currency assets, a major component of the reserves, decreased by USD 106 million to USD 574.134 billion, the data released on Friday showed.