Hyderabad, Covid-19 cases in Telangana surged once again on Sunday with 21 people testing positive, taking the state's tally to 1,082.

According to the director of public health and family welfare, no deaths were reported on Sunday. The death toll remains at 29.

The day also saw 46 people being discharged from hospitals on their recovery. With this, the number of people cured/discharged rose to 545.

The official said that the number of active cases in the state is now at 508.

Out of 21 new cases reported on Sunday, Greater Hyderabad alone accounted for 20. The other case was reported from Jagtiyal.

Greater Hyderabad Municipal Corporation (GHMC) limits, which account for more than 50 per cent of the total cases recorded in the state so far, remained a big worry for the state government in its efforts to contain the spread of Covid-19.

GHMC continued to report new cases even as most of the districts are showing no cases. For the fourth day in a row, almost all new cases were from the state capital.

Out of 33 districts in the states, three districts have not reported a single case so far while 17 districts have not recorded any positive case for last 14 days.

Meanwhile, most of the cases on Sunday were reported from Vanasthalipuram area in GHMC. Nine members of three families were tested positive in the area.

The sudden spike forced authorities to form eight containment zones in various colonies in Vanasthalipuram. As many as 169 families in these zones have been kept under home quarantine.

Police have sealed entry and exit routes of the colonies and erected barricades. GHMC officials said no outsider would be allowed. The residents have also been asked to remain indoors and not to step out.

Local MLA Sudheer Reddy said all markets and shops in these colonies were ordered shut. He sought people's cooperation in strict implementation of containment norms to check the spread of virus.

Meanwhile, strict enforcement of lockdown continued across the state. The lockdown is ending on May 7 and it is likely to be extended for another two weeks. A final decision is expected on May 5 when the state cabinet will meet to take stock of the situation.