The combined market capitalisation of eight out of the top 10 most valued companies in India surged by ₹1.72 lakh crore in the week ending August 22. Reliance Industries led the rally with ₹48,107 crore, taking its market valuation to ₹19-lakh crore. TCS, Bharti Airtel, ICICI Bank, Infosys, Hindustan Unilever, LIC and Bajaj Finance were among the other gainers.