Prime Minister Narendra Modi announced on Monday that the Centre would provide vaccines free of charge to all above 18 from June 21 and would take back control of vaccination from states, reversing a policy change that was enforced just about a month ago. Chief Minister Pinarayi Vijayan has extended the lockdown in Kerala till June 16. Delhi Chief Minister Arvind Kejriwal on Monday launched a door-to-door survey to vaccinate people above 45-years of age at their polling booths after the number of people to get the jab at vaccination centres plunged.