New Delhi, April 1 -- : More than 2.2 million people signed up for coronavirus vaccines and at least 2 million were given shots till 9pm on Thursday, the first day of India's expanded vaccination drive that comes against a backdrop of a raging second wave of the pandemic, with several cities and regions recording an unprecedented surge in infections.

Thursday was the first day anyone above the age of 45 becomes eligible to take part in the vaccination drive, which was restricted to the over-60s and people above 45 but with serious health conditions till last month. The government also asked all states to ensure vaccination centres stay open on all days, including public holidays.

In Delhi, long queues were seen at most hospitals and dis...