NEW DELHI, May 13 -- Delhi has shut over 100 vaccination centres meant for people in 18-44 age group for lack of Covaxin doses, deputy chief minister Manish Sisodia said on Wednesday, while hitting out at the Centre for capping the number of doses that states can acquire. He cited a letter by Bharat Biotech, which wrote back to the Delhi government expressing its inability to send more doses since the supplies were capped by the Centre. P4...