<h1>Rupee weakens to 90.77 as markets stay cautious after the India-US interim trade framework; RBI intervention expected.</h1> The rupee fell to 90.77 against the US dollar as markets reacted cautiously to the India-US interim trade framework; concerns about continued US oversight of energy imports and possible penalties diminished initial optimism. Technical support around 90.00-90.20 is viewed as key, with RBI intervention via dollar purchases expected to anchor the currency, while FII inflows have improved sentiment but their durability is uncertain.