Metro stations, which were yet to be reopened, were also opened for the public.
Police had imposed locked down at India Gate and Raisina Hill following violent protests against the gangrape incident.
Though traffic was allowed on Monday, a large number of police personnel were deployed on approach roads to India Gate and Raisina Hill.
Small protests were held in the capital on New Year Eve in memory of the 23-year-old girl, who died on Saturday morning and cremated on Sunday.
People gathered at Jantar Mantar in the morning. Some of the protesters were on hunger strike.