Market-capitalisation (m-cap) of all the listed companies stood at Rs 89,31,898 crore. At the closing rate 59.17 for USD-rupee pair, the market value stands at USD 1.5 trillion.
Stocks witnessed heavy buying with the Sensex logging a new all-time intra-day high of 25,419.14 and settled for the day at a new closing high of 25,396.46, up 376.95 points or 1.51 per cent.
The rupee appreciated 16 paise, logging its biggest daily rise in a fortnight, to end at 59.17 against the US dollar.
Indian equities started a dream run in the run-up to Lok Sabha election results on May 16. From 22,000 levels in early May, Sensex crossed the 25,000 mark after the Narendra Modi-led government assumed charge, with a historic mandate after three decades of coalition politics.
The stable government has raised hopes of a quick economic revival buoyed by continuing reform initiatives cutting across sectors.
India had first entered the trillion-dollar club in June 2007, but moved out in September 2008, amid the global slowdown. It again got back into the elite league in May 2009 and had largely remained there since then, except for some brief periods including once in 2012.
In August 2013, it had, however, slipped out of the elite list.
"Markets rose sharply for the week, reaching new alltime highs. Announcement of stimulus by ECB and continued optimism on economic reforms in India led to big gains.
"Expectations of resolution to the gas pricing issue helped stocks like RIL and ONGC register gains. We see the monsoon progress and the budget to be the two important triggers," said Dipen Shah, Head- Private Client Group Research, Kotak Securities.