The 'Kal Ho Naa Ho' star is only the third Indian actor to ring the bell, with Shah Rukh Khan and Kajol being the first.
"Am invited 4 d opening bell ceremony at NASDAQ tue morning! Hope i can list 1 of my companies there sumday! Now i'm excited (sic)," tweeted Zinta who is the co-owner of the IPL team 'Kings XI Punjab'.
The 35-year-old actress had earlier played the Grand Marshal at New York City's 30th India Day Parade.
Wearing a pink anarkali suit designed by Manish Malhotra, she led thousands of cheering fans through Manhattan, as Bollywood hits played in the background.
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