Bharti Airtel widened its lead over Reliance Jio on key value metrics in the June quarter, with its sustained premiumisation strategy receiving a further boost from the recently launched Fastlane offering that is accelerating upgrades to higher-value postpaid plans. Airtel reported an average revenue per user (Arpu) of Rs 264 in the June quarter, up Rs 7 or 2.7% sequentially. In comparison, Jio’s Arpu rose to Rs 215.6 from Rs 214 in the March quarter, an increase of Rs 1.6 or 0.7%.