The news of BMC's appeal to citizens of Mumbai to drink boiled water dates back to May 2018 when the Ghatkopar reservoir tank was being constructed.
Upon research, it was found that the newspaper clipping was published by Free Press Journal on 6 May 2018 with the headline: “BMC’s appeal: Drink boiled water for next seven days.” The article mentioned that Brihanmumbai Municipal Corporation had issued a notice in May 2018 appealing the people of Mumbai to drink boiled for seven days as there were chances of supply of turbid water in regions like Ward L Kurla and Ward N Ghatkopar.
Eureka Forbes Ltd had also posted the same newspaper clipping on its Facebook page on 9 May 2018, advising the public to follow the BMC's notice.
However, the news article is two years old, so it has no connection to COVID-19 precautions.
The COVID-19 pandemic has given rise to a lot of potentially dangerous misinformation. For reliable advice on COVID-19 including symptoms, prevention and available treatment, please refer to the World Health Organisation or your national healthcare authority.