Covid 4th wave: India s R-value crosses 1 for first time in 3 months, says researcher - Estimated R-value in the week ending April 18 is 2.12 for Delhi, 2.12 for UP, 1.04 for Karnataka, 1.70 for Haryana, 1.13 for Mumbai, 1.18 for Chennai.
India to reach Covid-19 peak in next 14 days: IIT Madras study - R-value indicates the rate of spread of coronavirus. It dropped to 1.57 between January 14 to 21.