Prime Minister Narendra Modi hailed the vaccination milestone, noting the world’s largest and longest-running vaccination campaign launched last year.
Health ministry data show the death toll from Covid at 525,709, with 49 deaths recorded overnight.
The number of new cases increased by 20,528 in the past 24 hours, the highest number since February 20, according to data compiled by Reuters.
The country of 1.35 billion people has lifted most Covid-related restrictions and international travel has quickly recovered.
About 80% of the vaccinations were produced by AstraZeneca’s domestic vaccine called Covisield. Others include the domestic drugs Covaxin and Corbevax, as well as the Russian Sputnik V.
The federal government is accelerating its booster campaign to prevent the spread of infections in the eastern states of Assam, West Bengal and Karnataka in the south.