New Delhi, July 19 -- In a week, the market valuation of five of the top-10 most valued firms jumped Rs 1.54 trillion. IT major TCS emerged as the biggest winner, in line with a positive trend in equities. TCS added Rs 72,072.3 crore, taking its market valuation to Rs 8,20,672.70 crore.

In its latest quarterly results, TCS reported a 4.61 per cent increase in its June-quarter net profit to Rs 13,349 crore.

Last week, the BSE benchmark Sensex climbed 582.06 points, or 0.75 per cent, and the NSE Nifty went up by 127.4 points, or 0.52 per cent.

The key gainers were Reliance Industries, ICICI Bank, State Bank of India, Tata Consultancy Services (TCS) and Bajaj Finance. HDFC Bank, Bharti Airtel, Life Insurance Corporation of India (LIC), Lars...