Those heading to Little India this weekend will not be able to buy alcohol or drink it in public areas, with the police instituting the move after last Sunday's incident.
A man believed to be the "hero" during Sunday's riot was spotted in Little India on Friday evening.
A service and information centre will be set up in Little India this weekend, said the Little India Shopkeepers and Heritage Association (Lisha) on Friday.
Home Affairs Minister Teo Chee Hean has appointed a four-member Committee of Inquiry to look into the riot at Little India on Sunday.
A Malaysian hairstylist, who took upskirt video clips of women at MRT stations, was jailed for nine weeks on Friday for insulting their modesty.