The speed of 5G rollout in India "is the fastest in the world", SP Kochhar, Director General of Cellular Operators' Association of India (COAI) said. "When the rollout is taking place in a phased manner, that is, in urban areas first, followed by rural, and not in a heterogeneous manner - the overall benefits of 5G will take some time to arrive," Kochhar told PTI.