The official said that Dharavi currently has only 82 active cases and the number of recovered COVID-19 patients has gone up to 2,257.
Initially everyone thought that it was difficult to contain the virus in Dharavi because of its density and crammed rooms.
The key strategy will be community engagement with the help of religious, political and fishermen leaders.
Nine new COVID-19 cases were reported in Dharavi area of Mumbai on Thursday taking the total number of cases to 2,347.
On Tuesday, just one COVID-19 patient was found in Dharavi, once a hotspot which has seen a dramatic improvement in the coronavirus situation.
According to the official, out of the 2,134 COVID-19 patients in Dharavi, 1,055 have already recovered from the infection and discharged from hospitals.
The death toll due to COVID-19 in the area also increased to 77 with two more patients succumbing
Dharavi in central Mumbai had reported the first coronavirus case on April 1, almost a week after the national lockdown came into force.
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The 'Kerala model', sources said, is likely to help the authorities to isolate all suspected people and do contract tracing effectively.
A senior official of the Brihanmumbai Municipal Corporation (BMC) said the tally of coronavirus cases in the densely populated area thus reached 733 during the day while the death toll rose to 21.
The overall death toll stood at 20, as no fresh fatality has been reported in the last 72 hours.
With this, the overall number of the cases from the densely-populated slum colony rose to 590 and the death toll to 20, he said.
Meanwhile, 357 new COVID-19 cases and 11 deaths have been reported in Mumbai on Friday
The latest positive cases were found in various localities of Dharavi, including Kutti Nagar, Matunga Labour camp, Azad Nagar, Rajiv Gandhi Nagar, Chamada Bazar, Mukund Nagar and Kalyanwadi.