The Telecom Regulatory Authority of India (Trai) recently began the consultation process on whether there could be a carrier-agnostic platform to provide free data to users. In an interview with Pranav Mukul, Trai Chairman RS Sharma said that the regulator was exploring a toll-free number equivalent for data services. Edited excerpts: Trai has already issued a direction on differential pricing that did not allow internet firms to offer free data services. With the latest pre-consultation on free data, it is alleged that Trai is making a U-turn. What is the rationale?