The world's largest vaccination programme is now facing an acute shortage of vaccines. Despite being the largest producer of vaccines, the vaccination drive is halted in India. As of 25 May, 21 crore and 89 lakhs vaccine doses have been given in the country. That is, 100 days after the launch of the vaccination drive, only 3 per cent of India's total population has inoculated with both doses of vaccine. Watch this episode of Mumbai Metro.