New Delhi: Addressing scientists at the National Metrology Conclave, Prime Minister Narendra Modi on Monday said that the world's biggest vaccination drive against coronavirus is set to begin in the country, a day after the drugs regulator approved two vaccines for restricted emergency use.

"World's biggest COVID-19 vaccination programme set to begin in India. For this, the country is proud of the contributions of its scientists and technicians," PM Modi said.

Lauding the scientists and technicians for the ''Made in India'' vaccines, he said the country is proud of them.

PM Modi said it must be ensured that ''Made in India'' products not only have global demand but also global acceptance.

"Quality is as much important as quantity, our standards should rise with our scale in our quest for Aatmanirbhar Bharat," he said.

India's drugs regulator on Sunday approved the Oxford Covid-19 vaccine Covishield, manufactured by the Serum Institute, and indigenously developed Covaxin of Bharat Biotech for restricted emergency use in the country, paving the way for a massive inoculation drive.

India’s daily new Covid-19 cases in the country remained below 20,000 for the third consecutive day taking the virus caseload to 1,03,40,469, while the recoveries surged to 99.46 lakh, according to the Union health ministry data updated on Monday.