India mandates caller name display; Truecaller faces disruption

India's telecom regulator will require all operators to implement Calling Name Presentation (CNAP) from November 1, a move that could undermine Truecaller's core business model. The regulation shifts caller identification from third-party apps to network-level infrastructure, potentially reducing Truecaller's user engagement and revenue. The impact on Truecaller's market position and financials is uncertain, but the regulatory change is a significant threat to its dominance in India.