Close to 30,000 samples are to be tested in the first phase of the study which will begin in a week.
Covid antibodies unlikely to last beyond three to four months, claim experts; next sero survey to begin in 15 days.
The ICMR-led survey, made public earlier this month showed a national seropositivity level of only 0.73 per cent based on 28,000 samples collected from 70 districts.
Experts at Maulana Azad Medical College had led sero survey on 257 people
When India had less than 60,000 COVID-19 cases, actual infection was over 100 times bigger: ICMR study
The districts had been chosen based on high, medium, low and zero prevalence of the confirmed COVID cases and overall, 0.73 % of the samples tested had antibodies against the virus.
This is the highest seroprevalence reported from any city in India so far, reveals survey
The survey has begun and samples will be collected from four districts, including North Delhi and Northwest Delhi, to start with on Saturday.
Deputy CM Manish Sisodia's letter comes a day after Baijal rejected the Arvind Kejriwal government's decision to allow hotels and weekly markets to reopen in the national capital.
The study of the survey shows that lesser prevalence in the non-slums areas is due to better social distancing and access to better hygiene in addition to interventions by BMC.
A serosurvey involves testing of blood serum of a group of individuals and this will be used to monitor trends in the prevalence of the novel coronavirus.
An official said that sites where infection size is 100 to 200 times higher are mainly in Mumbai, Pune, Delhi, Ahmedabad and Indore.
The suggested state level survey is in addition to two surveillance exercises the agency has already undertaken to test samples collected from 70 districts including 10 hotspot districts.
Sources said that in the project, 50 serum samples will be collected from 10 randomly picked containment areas in every city. This will amount to the overall testing of 5,000 samples in these cities.