Driven by strong stock market rally, the total valuation of BSE-listed companies surged to an all-time high of Rs 108 lakh crore today. At close of trade, market capitalisation (m-cap) of all companies listed on BSE soared to Rs 1,08,03,154 crore or USD 1.61 trillion. Investor wealth of BSE-listed firms, measured by market capitalisation, had seen a previous record high of Rs 1,07,00,756 crore on Thursday. TCS is the most valued Indian firm with a m-cap of Rs 5,02,764.54 crore followed by RIL (Rs 3,30,967.39 crore), HDFC Bank (Rs 3,16,006.91 crore), ITC (Rs 3,03,569.68 crore) and Infosys (Rs 2,48,184.87 crore). The total market valuation of all listed firms on BSE had hit a record high of Rs 100 lakh crore in November 2014. BSE is among the world's 10 largest exchanges in terms of market value while it is the biggest for number of firms listed on its platform. Over 2,900 companies trade on BSE currently. The continued dream rally at the bourse this year and host of new listings have contributed to the surge in overall m-cap. The BSE 30-share index has rallied 1,977.8 points or 7.57 per cent so far this year. The BSE Sensex reclaimed the 28,000-mark by surging 292 points to close at 28,095.34 today, as 1,715 stocks advanced, 994 declined and 202 remained unchanged.