For apps and platforms that rely on OTP authentication, choosing the best SMS OTP API in India is critical. This guide explores services that offer ultra-fast delivery, DLT-compliant transactional routes, and seamless integration. Whether it’s user sign-up, payment confirmation, or two-factor login, the right API ensures security and reliability. Compare features like auto-retry, deli... https://crm.smsgatewayhub.com/knowledge-base/article/top-otp-service-providers-in-india-a-comprehensive-guide