NSE recorded almost 145 crore equity trades on its platform last year, a gain of 3 per cent from 2012, making it the biggest among 51 global peers, according to data with the World Federation of Exchanges (WFE).
Rival exchange BSE slipped one place to eighth position. Although it has more than 4,000 listed companies, the BSE recorded 34.46 crore trades last year, a drop of 3 per cent compared to 2012.
Another Chinese bourse, the Shanghai Stock Exchange, moved up to fourth place from sixth in 2012, while the Nasdaq dropped two places to fifth.
Others in the top 10 include Korea Exchange (6th), Japan Exchange Group - Tokyo (7th), Canada's TMX Group (9th) and London SE Group (10th).
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The combined equity trade volume of NSE and BSE rose by almost 2 per cent to 179.4 crore in 2013.
According to experts, the positive trend in equity trades was bolstered by steps taken by the government and the Reserve Bank of India as well as sustained foreign institutional investment besides the global economic recovery.
"No doubt, the year 2013 will be remembered as the renaissance of equities as the financial crisis ended, while the year 2014 should see the end of the economic crisis bringing more opportunities for the market participants," SMC Global Securities Associate Analyst Kamla Devi said.
Echoing the view, CNI Research CMD Kishor Ostwal said: "The rise in equity...Is for three reasons -- one, global rally; two, expectation of policy decisions post-general election of 2014, and three, the rate cycle is peaking and very soon can start reversing.