Letters have been sent out to businesses in Little India, informing them that their liquor licences will be suspended this weekend.
The move comes in the wake of Sunday evening's riot in Race Course Road which involved 400 people and was sparked off by a 33-year-old Indian national being fatally run over by a bus.
The suspension will "help to stabilise the situation and allow the Singapore Police Force to assess the next steps, in consultation with the various stakeholders", read the letter from the Liquors Licensing Board, which was shared with the media.
The measures will apply on Saturday and Sunday, and, if the licences extend past midnight, to Monday too. An earlier letter sent out to merchants had included Friday in the licence suspension, but this was later corrected.
Enforcement action will be taken against businesses which violate the suspension order, police said, and they may have their liquor licences revoked.
Second Minister for Home Affairs S. Iswaran had indicated earlier that alcohol consumption in the area would also be banned this weekend.
Meanwhile, three more Indian nationals were charged in court with rioting yesterday. They were accused of damaging a bus with a dustbin, wooden stick, hardened concrete, bottles and a metal drain cover with at least five others.
The three work-permit holders - Rajendran Ranjan, 22; Moorthy Kabildev, 24, and Sathiyamoorthy Sivaraman, 26 - were additions to an initial group of 24 who were charged with rioting on Tuesday.