NEW DELHI : India will increase the number of its COVID-19 vaccination sites by up to five times after administering nearly 9 million shots in a month, a government official said on Tuesday, amid concerns about the speed of coverage in the country.Having reported the highest number of coronavirus infections after the United States, and with the world's biggest vaccine-making capacity, India says it has been the fastest to reach many inoculation milestones.However it is vaccinating only around 300,000 front-line workers a day, a total that will have to increase sharply to meet the government's target of covering 300 million of its 1.35 billion people by August, experts say.The ongoing vaccination of front-line workers such as nurses and.