Mumbai, July 11: Indian markets continued to gain during the last trading week ended on Friday last. After a gap up opening in the early part of the week, the index traded in a range for the rest of the week. Markets carried the momentum of the previous week to end in the positive for fourth straight week in a row. The S&P Sensex gained 573 points (1.59 per cent) while the Nifty-50 added 161 points (1.52 per cent) during the week. However, on Friday, Nifty ended 45 points lower (-0.4 per cent) to close at 10,768, while Sensex was down 143 points (-0.4 per cent) to close at 36,594.