Restaurant owner Sohaib Qureshi, 36, who is currently in prison, had previously pleaded guilty to involvement in the supply of cocaine between June 2008 and April 2009.
Qureshi, formerly of Bearsden, was sentenced to 12 years in prison.
The High Court in Edinburgh yesterday granted the confiscation order for £70,000.
Lindsey Miller, head of the Serious and Organised Crime Division, said: "Qureshi was heavily involved in the supply of cocaine in the Glasgow area.
"His conviction allowed our forensic accountants to investigate his previous six years' income, in order to analyse what proportion of it could not be accounted for legitimately.
"After full investigation of his accounts, £1,200,000 was found to be illegitimate and was therefore deemed to be proceeds of crime.
"Today's confiscation order represents the full amount of the illegal profits available to us at this time.
"Should further assets be uncovered, we can ask the court to recalculate the confiscation order."
Qureshi will have to give up his stake in a Glasgow curry house to meet the confiscation order.
Detective Chief Superintendent Athol Aitken added: "Sohaib Qureshi played a key role in directing a serious organised crime network involved in the importation and distribution of class A drugs to Scotland.
"He was investigated and subsequently convicted and jailed for his involvement.
"This latest confiscation is welcomed and highlights our willingness and ability to continue to pursue criminals after their conviction at court."
Since 2003, £60m has been recovered from criminals in Scotland as proceeds of crime.