Prime Minister Narendra Modi on Sunday lauded scientists of the country after the Drug Controller General of India (DCGI) gave approval to Serum Institute of India's 'Covishield' vaccine and Bharat Biotech's 'Covaxin' for emergency use, paving the way for its roll-out and administration to millions.

"A decisive turning point to strengthen a spirited fight! DCGI granting approval to vaccines of @SerumInstIndia and @BharatBiotech accelerates the road to a healthier and COVID-free nation. Congratulations India. Congratulations to our hardworking scientists and innovators," the Prime Minister said in a series of tweets.