SMS Fallback is a backup method that delivers OTP through SMS when WhatsApp OTP fails due to internet or app issues. In India, SMS Fallback improves OTP success rates for banking, fintech, and login verification systems. This hybrid model ensures smooth user authentication while reducing drop offs. Platforms like anantya.ai provide compliant OTP delivery by combining WhatsApp and SMS ... https://anantya.ai/blog/sms-fallback-for-whatsapp-otp-india/