Eight of 10 most-valued Indian companies added ₹1.21 lakh crore to their market valuation between September 23-27. Market-capitalisation (m-cap) of Reliance Industries, which emerged as top gainer, rose by ₹53,652.92 crore to ₹20,65,197.60 crore. It was followed by SBI, Bharti Airtel, ITC, TCS, HDFC Bank, LIC and Infosys. M-cap of ICICI Bank and Hindustan Unilever however fell during the week.