<h1>Stock indices drop over 300 points as investors await central bank policy; oil, gas, banking sectors hit hardest</h1> Benchmark stock indices declined ahead of a central bank's monetary policy announcement, with significant drops in oil, gas, and banking sector shares. The primary stock index fell over 300 points, and the broader index also saw a notable decrease. Major companies in the energy and financial sectors were among the largest contributors to the decline, while some firms in technology and finance recorded gains. Smallcap and midcap indices also experienced slight downturns. Foreign institutional investors sold equities worth substantial amounts, whereas domestic institutional investors made significant purchases. Global markets showed mixed trends, with some Asian and European markets closing higher and oil prices decreasing. This market movement reflects investor caution pending the central bank's policy decision.