Helped by a buoyant market, the landmark level was reached in early morning trade when the market capitalisation (m-cap) of BSE listed firm's rose to Rs 100.07 lakh crore.

At the end of the day, the total market value of all BSE listed companies stood at Rs 100.44 lakh crore.     

"Surprise rate cut by the RBI Governor triggered exceptional move in the domestic market. After strong gap-up start, benchmarks kept the upward momentum intact for most part of the session and gained more than two per cent in the end," said Jayant Manglik, President-retail distribution, Religare Securities.

Shedding his hawkish stance, Reserve Bank Governor Raghuram Rajan on Thursday sprang a surprise by cutting interest rates by 25 basis point a move that is likely to result in cheaper home and auto loans.

Meanwhile, those companies commanding market cap of over Rs 2 lakh crore include ONGC, ITC, RIL, Infosys, HDFC Bank, SBI, Coal India and ICICI Bank. Besides, HDFC, Sun Pharma, HUL, Bharti Airtel, L&T, Wipro, Tata Motors, HCL Tech, NTPC and Axis Bank have market cap of over Rs 1 lakh crore each.

TCS is the most valued Indian company and the only entity to have a market value of nearly Rs 5 lakh crore, as it commands a valuation of Rs 4,98,496.27 crore at present.

Scaling a new peak, the total market valuation of all listed firms at the BSE had hit a record high of Rs 100 trillion in November last year.

In the US dollar terms, the BSE market cap now stands at over USD 1.6 trillion.

The total market cap has more than doubled in the last five years from Rs 50 lakh crore in 2009, while it has grown ten-times since first scaling Rs 10 lakh crore level in 2003.

BSE is among the world's ten largest exchanges in terms of market value, while it is the largest globally for number of firms listed on its platform. It has over 4,100 actively traded companies and nearly 2.7 crore investors trade on it.

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