No positive cases were found in Beijing's beauty and barber shops in a further sign that the city's recent outbreak has been largely brought under control.
This is the fifth consecutive day that coronavirus infections have increased by more than 15,000.
Before the re-mapping exercise, the number of containment zones was 280 in the city, an official said.
With 1,59,133 COVID-19 cases, Maharashtra has reported the highest number of infections, followed by Delhi (80,188) and Tamil Nadu (78,335).
Listing his government's measures to combat COVID-19, the CM said it is a "difficult" war being waged by Delhi against the virus, it will win the war but it will take time.
Sharing statistics of various countries, Modi said India had performed much better in the fight against the coronavirus disease
Coronavirus News highlights: Total confirmed cases in India have risen to 5.28 lakh. India's recovery rate is now around 58.5 percent
The state's total case count now stands at 1,59,133.
The number of active cases stood at 1,97,387 while 2,95,880 patients have recovered, the ministry said, adding, "With this encouraging status, the recovery rate is touching 58.13 percent amongst COVID-19 patients."
The COVID-19 caseload zoomed to 5,08,953 with the addition of 18,552 cases in the last 24 hours, while 384 fatalities were also recorded during the same period.
According to Johns Hopkins University, which has been compiling COVID-19 data from all over the world, India is at the eighth position in terms of the death toll.
Dexamethasone can now be used as an alternative to methylprednisolone, in the case of moderate and severe COVID-19 patients in need of oxygen support and who experience excessive inflammatory response.
Maharashtra continues to be the worst-affected state as its tally reaching 152,765; followed by Delhi (77,240), Tamil Nadu (74,622) and Gujarat (30,095)
The study, published in the journal Science Immunology, assessed T cells from 10 COVID-19 patients under intensive care treatment.
The issues came to light during a telepsychology volunteering programme -- 'Monon', which means mental well-being -- conducted by a team of doctors and counsellors of the Gauhati Medical College and Hospital (GMCH), the medical establishment's Associate Professor of Clinical Psychology Dr Mythili Hazarika told PTI.
The Delhi government is combating the pandemic by increasing beds for COVID-19 patients, raising the number of tests, providing oxymetres and oxygen concentrators to patients in home isolation, providing plasma therapy, and through survey and screening, he said in a briefing.
Coronavirus News Live Updates: In India, over 4.9 lakh cases have been reported and the death toll is 15,301
On the other hand, 2,362 patients were discharged from hospitals, taking the number of recovered patients to 79,815, a state health department statement said.
The commissioner held a meeting with hospital deans, medical experts and senior health department officials through video conference, said a Brihanmumbai Municipal Corporation (BMC) release.
The WHO is working with a large coalition of drug-development, funding and distribution organisations under what it calls the ACT-Accelerator Hub.
Soumya Swaminathan said that Moderna's COVID-19 vaccine candidate was ‘not far behind’ Astrazeneca's, among more than 200 candidates, 15 of which have entered clinical trials
The government directed the hospitals to not charge any amount in excess of those prescribed for the treatment of COVID-19 patients and said not adhering to its orders could invite penalty under IPC Section 188 (disobedience to order issued by a public servant).
"We served notice to the hospital on Wednesday evening seeking explanation in three days. The hospital did not inform the state government nor sought permission," Chief Medical and Health Officer, Jaipur, Dr Narottam Sharma said.
Doctors say they've learned enough about the highly contagious virus to solve some key problems for many patients. The changes could be translating into more saved lives, although there is little conclusive data.
Besides the respiratory issues that leave patients gasping for breath, the virus that causes COVID-19 attacks many organ systems, in some cases causing catastrophic damage.