Bharti Airtel has hinted at revising tariffs for low-cost unlimited data plans. Bharti Airtel has indicated that it sees room to revise tariffs for lower-priced plans that offer unlimited data, suggesting the current pricing model is limiting revenue growth. According to Vittal, offering unlimited data at very low price points caps the company's average revenue per user (ARPU), making the existing pricing model unsustainable. While Airtel has not announced any immediate tariff revision, Vittal's remarks indicate that the company believes there is scope to increase prices for certain unlimited data plans in the future. The comments came as Bharti Airtel reported a strong performance for the June quarter.