Nine of the top-10 most valued firms together added Rs 2,89,699.42 crore in market valuation last week, with Reliance Industries emerging as the biggest gainer, in line with a rally in equities. Last week, the BSE benchmark jumped 1,822.83 points or 2.36 per cent. The BSE Sensex recorded the best monthly gain in June by climbing 7.14 per cent. The Sensex breached the historic 79,000 mark on Thursday. While Reliance Industries, Tata Consultancy Services (TCS), HDFC Bank, ICICI Bank, Bharti Airtel, State Bank of India, Infosys, Hindustan Unilever and ITC were the gainers, Life Insurance Corporation of India (LIC) emerged as the laggard. The market capitalisation (mcap) of Reliance Industries jumped Rs 1,52,264.63 crore to Rs 21,18,951.20 crore. TCS added Rs 34,733.64 crore taking its valuation to Rs 14,12,845.09 crore. The mcap of ICICI Bank soared Rs 30,286.99 crore to Rs 8,44,201.88 crore and that of Bharti Airtel surged Rs 18,267.7 crore to Rs 8,22,530.35 crore. The market valu