As per the data released by the state health ministry, the number of coronavirus cases in Maharashtra has been increasing steadily. A similar pattern is observed in Mumbai, where data shows that the number of cases has crossed the 40,000-mark. Keeping this in mind, the Brihanmumbai Municipal Corporation (BMC), on June 1, 2020, updated the list of containment zones in Mumbai.
The Ministry of Home Affairs extended the lockdown until June 30, across the containment zones in India. However, despite Lockdown 5.0, Maharashtra CM Uddhav Thackeray announced 'Mission Begin Again' where some restrictions will be eased from June 5, 2020, in Mumbai and nearby regions. But, these containment zones and red zones in Mumbai will remain sealed.
As of May 29, 2020, Mumbai had a total of 706 containment zones or red zones, and the number has increased to 763 zones as of June 4, 2020. Below table shows the ward wise data with the number of areas sealed by the BMC.
| Ward and Areas | Number of containment zones as of June 4, 2020 |
| Ward A - Churchgate, Colaba, and Navy Nagar | 18 |
| Ward B - Masjid Bunder, Mohd. Ali Road, Dongri and Bhendi Bazar | 24 |
| Ward C - Pydhonie and Bhuleshwar | 12 |
| Ward D - Grant Road, Walkeshwar, Malabar Hill, Breach Candy to Haji Ali | 8 |
| Ward E - Byculla, Madanpura, Agripada, Nagpada, Dockyard Road, Reay Road, Chichpokli | 17 |
| Ward F/N - Matunga, Sion, Wadala, Hindu Colony | 22 |
| Ward F/S - Parel | 20 |
| Ward G/N - Dharavi, Mahim and Dadar | 15 |
| Ward G/S - Worli and Prabhadevi | 11 |
| Ward H/E - Bandra East, Khar East and Santacruz East | 17 |
| Ward H/W - Bandra West, Khar West, Santacruz West | 35 |
| Ward K/E - Andheri East, Jogeshwari East, and Vile Parle East | 41 |
| Ward K/W - Andheri West, Jogeshwari West, and Vile Parle West | 43 |
| Ward L - Sakinaka, Chandivali, Asalpha, and Kurla | 120 |
| Ward M/E - Mankhurd, Anushakti Nagar, Deonar, Cheetah Camp, Shivaji Nagar | 63 |
| Ward M/W - Chembur, Sindhi Society, Chheda Nagar and Tilak Nagar | 13 |
| Ward N - Ghatkopar, Vidyavihar and Pant Nagar | 16 |
| Ward P/N - Malad, Manori, Marve, Aksa, and Madh | 32 |
| Ward P/S - Goregaon | 21 |
| Ward R/C - Borivali | 12 |
| Ward R/N - Dahisar | 82 |
| Ward R/S - Kandivali and Charkop | 45 |
| Ward S - Bhandup, Powai, Kanjurmarh, Vikhroli and Nahur | 72 |
| Ward T - Mulund | 10 |
Following the directives from the Ministry of Home Affairs, the state government released the new set of guidelines with the list of activities which will be permitted in Mumbai and other regions from June 5, 2020. These activities will be allowed in a phase-wise manner, to ensure safety and no further spread of coronavirus.