Prime Minister Narendra Modi will on Saturday virtually launch the Covid vaccination drive at 10:30 am. He will also be interacting with the beneficiaries. India is all set to roll out the world's biggest vaccination programme with over 3 lakh healthcare workers to be inoculated on the first day of the much-anticipated drive against coronavirus which the Centre said is "probably the beginning of the end" of Covid-19. A total of 3,006 session sites across all states and union territories will be virtually connected during the launch at 10.30 am by Prime Minister Narendra Modi and around 100 beneficiaries will be vaccinated at each session site.