OTP India is an essential requirement for any website or application for reliable and effective method of protection against cyber threats. Compare the top 7 best OTP service providers of 2025. Explore reliable APIs, global coverage, and pricing to choose the right OTP SMS service for your app. OTP SMS is a short message containing a one-time auto-generated code for verifying mobile users and validating online transactions. OTPSMS.org is a reliable and low-cost OTP service provider in India that offers SMS and voice OTP services for various sectors and purposes. Looking for the best OTP service providers in India? MSG91 stands as the foremost OTP service provider, trusted by over 30,000 businesses, including industry giants.
