Tata Consultancy Services (TCS) on Wednesday went past Reliance Industries Limited (RIL) yet again to become the most valued Indian firm by market valuation. At close of trade on the BSE, the market capitalisation (m-cap) of TCS was at Rs 6,19,499.95 crore, which is Rs 5,320.02 crore more than that of RIL’s Rs 6,14,179.93 crore valuation.