Sebi said Copthall Mauritius Investment and Mansi Share and Stock Broking had manipulated the closing auction session on 13 August, which was a weekly Sensex expiry day for derivatives contracts 
Sebi said Copthall Mauritius Investment and Mansi Share and Stock Broking had manipulated the closing auction session on 13 August, which was a weekly Sensex expiry day for derivatives contracts 
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