The Indian stock market indices, Sensex and Nifty 50, are set for a day of caution on Thursday. Mixed signals emanating from global markets are causing investors to remain watchful following the recent US-Iran ceasefire developments.The prevailing sentiment suggests a potential gap-down opening for the benchmark indices. This outlook is underscored by the Gift Nifty, which was observed trading around the 23,973 level. This represents a discount of nearly 84 points when compared to the Nifty futures' previous close.Wednesday saw a remarkable surge in market activity. The Nifty 50 index closed at 23,997.35, recording a gain of 873.70 points, or 3.78%. Meanwhile, the Sensex rallied significantly, climbing 2,946.32 points, or 3.95%, to...