The Pakistan Stock Exchange (PSX) kicked off trading on a positive note, with the benchmark KSE-100 Index gaining over 200 points during the opening minutes on Tuesday. At 9:40am, the benchmark index was hovering at 171,451.44, an increase of 247.27 points or 0.14%. Buying interest was observed in key sectors, including automobile assemblers, commercial banks, fertiliser, oil and gas explora