The Calcutta Stock Exchange wanted trading on C-Star—the online platform of CSE, which was stopped by the Sebi in 2013, to resume
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Calcutta Stock Exchange-List of Companies
Is Calcutta Stock Exchange officially closed or not ?
Non Listing of shares in a working Stock Exchange badly hurts investors as Share Dealers of Unlisted shares pay around One Third Price ( of the likely price had that share been listed in NSE / BSE )