Indian markets opened weak as Trump's tariff threat and RBI policy jitters kept sentiment subdued. Nifty dropped 97 pts; Sensex fell 363. IndusInd surged 5% after Rajiv Anand's CEO nod. Godfrey Phillips, Kaynes Tech, and PSP Projects also gained. Traders remain cautious ahead of RBI meet; Nifty support seen at 24,600-24,500.