Three lanes of H-Block in Jahangirpuri, in the North District, were made the containment zone on April 14 and samples were collected after screening.

"At least 46 people living in the H-Block tested positive today and they were taken to the Covid Care Centre in Narela," a government official told IANS.

The 1100 wali Gali (House numbers 1181-1200), 1200 wali gali (House numbers 1238 to 1268), and 1300 wali gali (House number1306 to 1331) were sealed as one area on April 14.

In the North district, total seven containment zones have been formed. Out of these, six locations are in densely populated Jahangirpuri -- in B, C, H, G, K Blocks and Sanjay Enclave.

Last week, in the containment zone in C-Block, 31 people, including 26 of a family, tested positive for the infection.

About 2,250 people have tested positive for coronavirus so far and over 90 containment zones have been formed across the city.

The containment zones, announced by the district administration after three or more Covid cases are found in an area, have seen a constant rise since April 8, when there were only 20.

After a 'containment zone' is declared and sealed, the Delhi government starts 'Operation SHIELD' -- Sealing, Home Quarantine, Isolation and Tracking, Essential Supply, Local Sanitisation and Door-To-Door Checking -- to control the spread of the virus