Six of the top 10 most valued domestic firms together added over ₹1.13 lakh crore in market valuation last week. TCS was the biggest gainer as its valuation rose by ₹42,495.76 crore to ₹12.13 lakh crore while Bharti Airtel's market capitalisation climbed by ₹33,960.84 crore to ₹3.29 lakh crore. Reliance Industries, HDFC Bank, Infosys, ICICI Bank were the other gainers.