OTP SMS delivered in seconds, every time

Send one-time passwords for login, payment and account verification through a fast, priority route — 24x7, including to DND numbers.

Get Free Demo Call 99604 12136

AT A GLANCE

✓Delivery in seconds
✓24x7 including DND numbers
✓Simple HTTP API
✓Real-time delivery reports
✓DLT-compliant templates

Built for secure verification

Priority routeOTPs go through a dedicated transactional route so they reach customers fast.

Easy APISend an OTP with one HTTP call from your website, app, CRM or core banking software.

Delivery reportsTrack every OTP with number-wise, real-time status.

All networksJio, Airtel, Vi and BSNL across India.

Regional languagesSend OTP messages in English or Indian languages.

DLT helpWe help you register your header and OTP template on DLT.

Where businesses use OTP SMS

PaymentsConfirm UPI, card and wallet transactions.

BankingSecure net banking and account changes.

E-commerceCash-on-delivery and order verification.

Frequently asked questions

How fast is OTP delivery?OTP SMS are usually delivered within a few seconds, 24x7.

Do I need DLT for OTP SMS?DLT registration is mandatory for sending SMS in India. It is separate from our SMS packs, its fee is paid directly to the telecom operator, and it is renewable — it must stay active. Headers and templates must be approved on DLT before sending. Our team helps you with DLT registration and template approval.

Can I integrate OTP with my app?Yes. Our SMS API works with any website, mobile app, CRM or ERP. Our team helps with integration.

Start sending OTP SMS

Free online demo • API help • DLT support

Book Online Demo Contact Us

IndustriesBanking & Co-operatives Finance & Lending Healthcare Education Retail & E-commerce Technology & Software Logistics, Travel & Hotels Real Estate Agriculture & Co-operatives Manufacturing & Utilities

States We ServeMaharashtra Gujarat Karnataka Delhi NCR Tamil Nadu Telangana Andhra Pradesh Kerala Goa Madhya Pradesh Rajasthan Uttar Pradesh West Bengal Punjab All States →

Quick LinksBulk SMS RCS Messages WhatsApp API IVR Solution Bulk Voice Call Pricing Login Get Free Demo

SMS ServicesBulk SMS Transactional SMS OTP SMS & API Promotional SMS Regional Language SMS SMS API DLT Registration Guide SMS Reseller

Smart Bulk SMSBY SMART CAMPAIGN SOLUTION

Transactional, OTP and bulk SMS for businesses across India.

99604 12136 support@smartbulksms.in

CompanyAbout Us Contact Us Privacy Policy Terms & Conditions Cancellation & Refund Pricing Policy Shipping & Delivery