Delhi chief minister Arvind Kejriwal on Thursday said his government had made all preparations for the Covid-19 vaccination programme that rolls out across India from Saturday. Delhi had received 2.74 lakh vaccines from the Centre, of which 1.2 lakh will be used for health care workers. The state government will roll out vaccination at 81 centres and progressively increase it to 175, and then to 1,000 centres, the CM said. At each of these centres, up to 100 vaccines will be administered. The inoculation will be done for four days in a week -- Monday, Tuesday, Thursday & Saturday, he said.