New Delhi:Â India’s ‘R-value’, which indicates how rapidly COVID-19 is spreading, was recorded at 2.2 between January 7 and 13, a drop from the previous two weeks, according to a preliminary analysis by IIT Madras. The R value of Mumbai was 1.3, Delhi 2.5, Chennai 2.4 and Kolkata 1.6, according to the analysis by IIT Madras’ […]