Mumbai, November 28: Billionaire Mukesh Ambani-led Reliance Industries Ltd (RIL) on Thursday became the first Indian company to hit the Rs 10 lakh crore milestone in the market capitalisation, after its shares rose to a record high of Rs 1,581 apiece. The broader markets also hit a new high. Sensex, the benchmark 30-share index, was trading at 41,050.92 up over 25 points at 13.54 hrs while Nifty was trading at record high of 12,117.65 up almost 16 points in the afternoon trade.