Nine of India's 10 most-valued Indian companies collectively added ₹2.34 lakh crore to their market capitalisation in the past week, Moneycontrol reported. Reliance Industries emerged as the biggest gainer as its market valuation jumped by ₹69,556.91 crore to ₹20,51,590.51 crore, the most among the top-10 firms. From the top-10 pack, Infosys was reportedly the only one that faced erosion.