Enterprise Bulk SMS Services
Built for India
We provide Bulk SMS Gateway services for Transactional and Promotional messages, alongside developer-friendly HTTP & XML API tools for seamless integration. Language-agnostic APIs work with PHP, Java, Python, ASP.NET, Ruby and more.
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Experience premium-class messaging with BookMySMS
Enterprise business solutions that make SMS integration easy and simple — from critical transactional alerts to large-scale marketing campaigns.
Transactional SMS
Transactional SMS are messages sent to customers to deliver information essential to using your product or service. These are critical, time-sensitive messages that go to both DND and non-DND numbers 24×7.
- Order confirmations, shipping updates & delivery notifications
- Bank transaction alerts and balance updates
- Appointment reminders and booking confirmations
- Password reset and account security notifications
- Subscription renewal and payment receipts
Promotional SMS
Promotional SMS are marketing messages sent to opted-in subscribers with the objective of promoting your product or service — including sales campaigns, offers, events, and announcements.
- Flash sale announcements and limited-time offers
- Festival and seasonal campaign blasts
- Event invitations and RSVP reminders
- New product launches and feature announcements
- Loyalty programme points and reward updates
OTP SMS — User Verification
Add a powerful security layer to your online transactions and logins with sub-second OTP delivery. Our intelligent routing ensures OTPs reach users before they expire, with the industry's best delivery rate.
- Two-factor authentication (2FA) for logins
- Payment & transaction verification
- New user registration and mobile verification
- Password reset and account recovery
- E-commerce checkout security layer
Alert SMS
Using our intelligent redundant routing technology, critical SMS for two-factor authentication, fraud alerts, and important notifications are delivered within seconds — even under peak traffic conditions.
- Fraud detection and security breach alerts
- System downtime and maintenance notifications
- Emergency broadcast messages
- Low balance, credit limit and overspend alerts
- Suspicious login and account activity warnings
RCS Messaging Service
Go beyond SMS with Rich Communication Services — branded, interactive conversations supported natively on Android and iOS. Share high-resolution images, HD videos, carousels, and quick-reply buttons directly in the native messaging app.
- Branded sender profile with verified badge
- HD images, videos & document sharing
- Interactive carousels with CTAs and deep links
- Quick-reply buttons and suggested actions
- Read receipts and delivery confirmations
Which SMS type is right for you?
Use this table to understand the differences and choose the right message type for your use case.
| Feature | Transactional | Promotional | OTP SMS | RCS Messaging |
|---|---|---|---|---|
| DND Numbers Allowed | Yes | No | Yes | Yes |
| Time of Delivery | 24×7 | 9 AM – 9 PM | 24×7 | 24×7 |
| TRAI DLT Required | Yes | Yes | Yes | Yes |
| Rich Media (Images/Video) | No | No | No | Yes |
| Delivery Speed | Instant | Batch/Scheduled | Sub-second | Instant |
| Typical Use Case | Alerts, order updates | Offers, campaigns | Login, payments | Branded marketing |
| Recommended For | All businesses | Retail, E-commerce | FinTech, SaaS, Apps | Premium brands |
Integrate SMS in minutes,
not days
Our language-agnostic HTTP and XML APIs work seamlessly with any tech stack. Send a message with a single GET or POST request — no complex SDK required.
HTTP & XML API
Simple REST APIs with GET & POST support. Integrate with any language or framework.
SMPP Gateway
High-volume SMPP streaming for enterprise applications needing extreme throughput.
Delivery Reports
Real-time DLR callbacks — get delivery status pushed to your webhook URL instantly.
Secure & Reliable
API key authentication, HTTPS-only endpoints, rate limiting and IP whitelisting.
SMS solutions for every industry
Enterprise messaging solutions at affordable prices — powering customer communication across 12+ industry verticals.
Brands that trust BookMySMS for their SMS communications
Ready to send your first
bulk SMS campaign?
Get started free — no setup fee, no lock-in. Our team will onboard you, handle DLT registration, and get your first campaign live in under 24 hours.