NEW DELHI: Bharti Airtel has topped OpenSignal 's 3G and 4G speed charts, although Reliance Jio is still ahead in terms of 4G availability, according to the broadband speed testing firm's latest report. "As it did six months ago, Airtel took both our 4G speed and 3G speed awards. We measured average LTE downloads of 9.2 Mbps and 3G downloads of 3.6 Mbps on its networks. Despite its wins though, both metrics were down from our last report," said OpenSignal's report 'State of Mobile Networks: India'. The report analysed over 7 billion measurements from over seven lakh mobile devices across India and covered the period June 1 to August 31, 2017. It captures the intense battle for 4G dominance between incumbent Bharti Airtel and upstart Reliance Jio and notes that the battle still rages, albeit with a "new twist". "In the past six months, Jio's 4G speeds have risen dramatically, coinciding perfectly with the en...