'Even if Serum Institute and Bharat Biotech were successful in ramping up production overnight, what happens to the capacity after the demand from India is met?' asks Sanjeev Nayyar.
Serum Institute of India (SII) and Bharat Biotech have also stopped producing the Covishield and Covaxin vaccines respectively.
Three temperature-controlled trucks rolled out of the Serum Institute gates shortly before 5 am and left for Pune airport, from where the vaccines will be flown across India.
Several states and UTs including Delhi, Maharashtra, Karnataka and Telangana have decided to opt for global tenders for procurement of anti-coronavirus shots with the domestic supply falling short to meet the rising demand.
This will be an upfront payment for the vaccine doses that these two companies will supply to the government.
Apollo Hospitals and Fortis Healthcare are open to importing vaccines.
"The concrete actions are a stern indication that Government of India is making all out efforts to increase vaccine production in the country as well as attracting foreign vaccine manufacturers to supply the required vaccine doses for national Covid vaccination programme," the ministry in a statement.
The government is hopeful of a speedy launch of single-dose COVID-19 vaccine Sputnik Light in India and all stakeholders, including the Russian manufacturer and its Indian partners, have been directed to fast-track the application and regulatory approval procedures for the jab to boost the country's vaccination drive, sources said.
The Hyderabad-based Bharat Biotech has fixed the price of its COVID-19 vaccine, Covaxin, at Rs 600 per dose for state governments and at Rs 1,200 per dose for private hospitals. The Pune-based Serum Institute of India, the world's largest vaccine maker in terms of volume, has announced a price of Rs 400 per dose for its COVID-19 vaccine, 'Covishield', for state governments and Rs 600 per dose for private hospitals.
The bench, which was critical of the Centre's stand on the issue, said "You (government) are so short of vaccines and you are not taking it through. May be it is an opportunity for you. Don't be so negative. It is like a raging fire and nobody is bothered. You people don't understand the larger picture or what.
The expert committee sought more information from Serum Institute regarding the Oxford-AstraZeneca vaccine.
'What the government should do is to use the vaccine judiciously, not just to prevent a third wave alone, but to stop the number of deaths happening in the interim.'
Experts said attempts from China have increased in the last year, which further amplified after the Indian government banned Chinese applications post the Galwan clash.
The pandemic has brutally highlighted the inadequacy of India's administrative systems. And, the government has demonstrated its culpable inability to speed up vaccination in a timely manner, says Jaimini Bhagwati.
At 8 million a month, times two doses, it will take us 17 years to administer the vaccine to our 800 million adults. The rollout must speed up twenty times, asserts Naushad Forbes.
'The future looks quite bleak unless we ramp up testing and start vaccinating on a war footing.'
'I'll give it to the vaccine manufacturers without guarantees, take the payment in advance and give me the supplies.' 'The moment you give me one lot of supply, I'll give you more.'
'Rolling out the vaccine is not a major challenge in India.'