On Saturday, the health department of Maharashtra reported 47 new cases of the deadly COVID-19, including 28 from Mumbai, raising the state total to 537.
According to officials, out of the remaining positive patients, 15 of the new cases are from Thane district, two from Pune and one each from Amravati and Pimpri Chinchwad.
Mumbai is India's worst-affected city by the novel coronavirus that first originated in the Chinese city of Wuhan last December. Since its first case on March 9, the city has reported at least 20 deaths from the virus.
As many as 474 teams have been deployed across 241 containment zones and at least 900,000 people have been checked by the city's administration to contain the spread of the virus that has killed more than 50,000 globally.
Multiple teams from the Brihanmumbai Municipal Corporation (BMC) are tasked with the identification of containment zones where at least one person has tested positive for COVID-19.
According to BMC protocol, the family and immediate neighbours of positive patients are tested, as they are considered high risk. Other residents of the building are considered low risk and are simply asked to be in home quarantine.
Residents of adjoining or nearby buildings in the containment zone are also surveyed and asked to keep close tabs on emerging symptoms.
Maharashtra has also undertaken the mammoth task of tracking the members of the Tablighi Jammat who attended an event in Delhi’s Nizamuddin Markaz in March despite government orders and a looming pandemic. The state government has been able to contact 1033 people out of 1225 who went to Nizamuddin Markaz and put 738 in government quarantine facilities.