WhatsApp and Google RCS are currently the dominant OTT channels, gaining traction as rich mediums for enterprise communication. Mordor Intelligence estimates India’s communication-platform-as-a-service (CPaaS) market to grow to $3.06 billion by 2030, from an estimated $1.01 billion in 2025.

Source: https://telecom.economictimes.indiatimes.com/news/policy/regulatory-challenges-arise-from-sim-binding-mandate-for-rcs-in-india/126070762