Peter Boyland, writing on the OpenSignal Blog:
Navi Mumbai registered average 4G speeds of 8.72 Mbps in OpenSignal’s latest measurements, which track average 4G download speeds among 20 of India’s largest cities between December and February. Elsewhere, second-placed Chennai saw its 4G speeds nearly double, jumping up from 4.4 Mbps in our last post in March 2017. At the other end of the scale, Allahbad was only city to register less than 4 Mbps with average speeds of just 3.5 Mbps.
Mumbai ranked fifth on that list with an average 4G speed of 6.97Mbps, followed by Hyderabad at 6.71Mbps and Delhi at 6.69Mbps.