India mandates caller-ID apps share spam data with telcos despite Truecaller pushback

India has expanded its anti-spam regulatory framework, requiring caller-ID and call-management applications to share user spam reports directly with telecom operators. The decision led caller-ID provider Truecaller to criticize the ruling as anti-competitive. The Telecom Regulatory Authority of India (TRAI) updated its commercial communications rules, mandating that apps allowing users to flag unwanted calls must feed those reports into a blockchain-based platform operated by telecom providers. The platform tracks commercial interactions and enforces anti-spam measures. TRAI stated the rule change aims to consolidate spam reporting data to enable more effective action against spammers by integrating app-collected feedback directly into telecom enforcement infrastructure. However, Truecaller stated that the requirement constitutes an unreciprocated, anti-competitive transfer of commercially valuable data from independent software developers to telecom operators. India represents Truecaller's largest user base, accounting for over 350 million of its 500 million global monthly active users. The Stockholm-based firm utilizes community reporting paired with automated detection signals to identify and restrict spam calls. The regulatory shift occurs as India manages widespread spam and automated fraud calls. According to Truecaller data, its users in India encountered approximately 42 billion spam calls in 2025, with the platform actively blocking nearly 12 billion spam calls over the course of the year.