KATHMANDU, Aug 18: The stock market moved to the upper side within the first few minutes of trading on Tuesday and shot 12 points. However, the wave of selling pressure dragged the index back to red by the end of the first trading hour. But a steady advance followed suit at mid-day and continued its positive bias throughout the session.  At the end, the benchmark Nepal stock exchange (Nepse) index closed with a gain of 5.68 points to close the session at 1407.89 points.