Over 15 lakh people have been quarantined in Mumbai after contact-tracing since the outbreak of coronavirus, the Brihanmumbai Municipal Corporation (BMC) said. Of these, 5.34 lakh people were identified as high-risk contacts. At least 13.28 lakh people have completed their 14-day quarantine so far while 2.46 lakh people are currently under home quarantine and 14,288 under institutional quarantine.