"Lockdown and containment (measures) have been successful in keeping it low and preventing rapid spread," ICMR Director General Balram Bhargava said, citing the sero-survey on COVID-19 spread.
The Centre said the upsurge of COVID-19 cases is happening in cities and the Omicron variant is the predominant circulating strain.
A steady decline in new COVID-19 cases has been recorded in India for the last 20 days, with 24 states witnessing a dip in active cases since the last week, the Union health ministry said.
'We have the technical expertise, and international collaborations. We also have robust real-time data. We are a university of pandemic management. If the ministry neglects the role of NCDC, it is the loss of the country'
Addressing a press conference, NITI Aayog Member (Health) Dr V K Paul said the question of the third wave keeps coming up because the population is still 'very vulnerable' to the infection.
"Despite the high number of cases reported so far, we have been able to contain the spread to under 2 pc of population," said Health Ministry Joint Secretary Lav Agarwal.
The official said in general, there are various types of fungal infections such as candida, aspergillosis, cryptococcus, histoplasmosis and coccidioidomycosis. Mucormycosis, candida and aspergillosis are the ones observed more in those with low immunity, he said.
The experts agreed that the lockdown has helped in slowing down spread of the virus but insisted that the situation has not reached a plateau and that there was an urgent need to upgrade healthcare facilities to deal with the crisis.
The death toll climbed to 15,301 with 407 new fatalities, according to the Union health ministry data.
The government said there was no immediate plan to extend the 21-day lockdown period, which entered its sixth day on Monday, while the Indian Army dismissed as "fake" social media posts about a possible emergency declaration next month.
As cases of 'black fungus' among COVID-19 patients in the country rise to cross 7,000, the Centre on Thursday urged all states and union territories to declare it as a notifiable disease under the Epidemic Diseases Act to ensure mandatory surveillance to tackle the 'new challenge'.
The government said it had been evaluating the implementation of the decentralised model of vaccination since its launch on May 1 and that the decision to centralise it again was taken after detailed deliberations and following requests by some states, amid claims by the Opposition that the policy change was due to the Supreme Court's intervention.
Concern is growing among healthcare experts who believe that if people do not follow the lockdown or social distancing seriously, the situation can quickly go out of control.
This was the sixth consecutive day when coronavirus cases increased by more than 14,000. Consequently, India has added 92,573 cases since June 20, and over 2.82 lakh this month alone since June 1.
If the precautions are not taken and guidelines are not followed properly, there can be chances of spike in cases, the government said.
The Union health ministry officials also said India was at the second stage as there is still no 'hard evidence' to say that there has been community transmission of the fast-spreading coronavirus, remarks which may provide anxious citizens with much needed assurance and hope.
'Call it by whichever name, but there is transmission happening between people.'
Four people have died including one each in Delhi, Karnataka, Punjab and Maharashtra.
Fresh guidelines were issued by the government on Wednesday for enforcing the second phase of the coronavirus lockdown, with the Union home ministry barring all kinds of public transport and prohibiting opening of public places during this period.
Seeking cooperation from the public to fight the pandemic, the Union health ministry officials said there was no need to panic. They also said not everyone needs to wear masks and that following social distancing is more important to prevent the spread of COVID-19.
'In countries like Japan, one out of 11.7 tests turns out to be positive, which is among the highest in the world. Italy tests 6.7 persons for one positive test while the USA tests 5.3 persons and the United Kingdom 3.4'
The prime minister is likely to talk about its possible extension.
The lockdown in India has been a timely, graded, proactive and pre-emptive public health measure to fight the COVID-19 pandemic and has been part and parcel of the government's overall strategy, Dr V K Paul, Member (Health), NITI Aayog, and Chairman, Empowered Group 1, said at a media briefing on the COVID-19 situation.
The official also said the government's official app helped generate information about 697 potential hotspots in the country.
However, the number of confirmed cases reported by states rose by over 500 to cross 3,000 with at least 90 dead. While Maharashtra, Telangana and Delhi disclosed several new cases of the deadly virus infection, government officials said the numbers have risen in last few days mostly due to one event -- referring to the Tablighi Jamaat's religious gathering in the national capital attended by thousands of people last month.
India is currently under the 21-day lockdown since March 25, with only essential services exempted to contain the fast-spreading virus.
Massive crowds thronged liquor stores, more vehicles plied on roads and cab-hailing platforms resumed services as India entered the third phase of the lockdown on Monday with further easing of curbs except in containment zones in the shadow of the highest rate of recovery yet from coronavirus.
While the number of active COVID-19 cases stood at 7,409, as many as 764 people have been cured and discharged, and one had migrated, it said. Of the total 273 deaths, Maharashtra tops the tally with 127 fatalities, followed by Madhya Pradesh at 36, Gujarat at 22 and Delhi at 19.
Of the 20 deaths reported in the last 24 hours, eight were from Maharashtra, three each from Gujarat and Madhya Pradesh, two from Jammu and Kashmir and one each from Punjab, Uttar Pradesh, Karnataka and Tamil Nadu.
A home ministry official said while 9,000 Tablighi Jamaat members and their primary contacts have been quarantined till now across the country due to "massive efforts" to check the outbreak, the Centre has written to all states and union territories that "the lockdown measures should be implemented in letter and spirit".
Authorities also said the recovery rate of COVID-19 patients was improving consistently in India and it was in a much better position in handling the pandemic, which has seen more than 63 lakh people testing positive for this virus since its emergence in China last December and over 3.7 lakh having lost their lives.
A total of 37 deaths were reported since Thursday evening of which 14 fatalities were reported from Maharashtra, nine from Gujarat, three from Uttar Pradesh, two each from Andhra Pradesh, Delhi, Madhya Pradesh,Tamil Nadu and Telengana and one from Karnataka, ministry data stated.
While asserting that the growth of coronavirus cases in the country has been more or less linear and not exponential, it also said testing has been ramped up consistently.
The first part of the study conducted by the Indian Council of Medical Research (ICMR) revealed that 0.73 per cent of the population surveyed showed evidence of past exposure to SARS-CoV-2, and that urban slum population was the most vulnerable to the infection, ICMR Director General Balram Bhargava said at a press conference.
