Investors added ₹8.04 trillion to their wealth as the market capitalisation of all BSE-listed companies swelled to ₹482.41 trillion from ₹474.37 trillion on Friday. Sensex today: The festive spirit seems to be underway on Dalal Street, with the benchmark indices kicking off Diwali week on an upbeat note. Today is the third straight day of gains for both Sensex and Nifty.