The Indian rupee opened on a flat note and inched higher by 3 paise to 74.51 against the US dollar in early trade on Friday, as investors await fresh triggers. At the interbank foreign exchange, the domestic unit opened at 74.53 against the dollar, then inched higher to 74.51, registering a gain of just 3 paise over its previous close.

On Thursday, the rupee had settled at 74.54 against the US dollar. Meanwhile, the dollar index, which gauges the greenback's strength against a basket of six currencies, was trading 0.06 per cent down at 92.56. The Indian Rupee opened flat against the US Dollar this Friday as investors await fresh triggers, Reliance Securities said in a research note. Moreover, Asian currencies have started weak and could weigh on sentiments, the note said.