India’s No. 1 Bulk SMS Platform.

Increase sales and customer satisfaction with smarter SMS campaigns, Instant OTPs, Notifications, Alerts & Smarter Bulk SMS Offers via Web Portal, APIs, and other award-winning bulk SMS services.

Promotional SMS Starting @ ₹ 1,299
Promo DND SMS Starting @ ₹ 1,399

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Share menus, brochures, images, PDFs & more as web links in your SMS and increase campaign effectiveness.

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An efficient method of promotion to a large subscriber base in quick time, the platform can be customized for various industries like - BFSI, Real Estate, Education, Healthcare, FMCG, Communication, Broadcasting, Entertainment, IT, Tourism, Leisure and others.

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Our Features

Focused on results we seek to raise the level of our customers.


Our direct partnership with multiple telecom operators and smart SMS gateway technology ensure best-in -class delivery rates & speeds.


Multiple operator support ensures that one of our operators will automatically start working if the other is inactive.


Our Smart Routing helps transmit your bulk sms over multiple network routes carrying least traffic.


Free API Integration with your software or website.


We support all languages like Hindi, Marathi, and many more.


Smart HTTP, XML, SMPP API's that enable you to send SMS right from your software/web application.

Our simple platform helps you to Send Promotional SMS, OTP SMS, Transactional SMS, SMPP & API SMS.

About the Company

Rat SMS is a leading SMS messaging service provider offering two-way SMS communication services from your internet-enabled computer.

Our strength

We have done it over 1 billion times for over 1,000+ customers. You get our exclusive 99.98% SMS Gateway uptime guarantee for total peacefulness.

Our simple platform helps you to Send Promotional, Marketing, OTP, Multimedia & SMS API

Unmatched Delivery

We are in direct operate connectivity with multiple telecom operators, 24x7 support for your texts, and ultra-low latencies.

Free & Flexible API


We offer the easily adaptable and most flexible SMS API that allows you to start sending SMS from any application in a minute.

Easy & Powerful Texting

Rat SMS opens up advanced campaign options for SMEs and marketing users, without requiring any IT help.

Our Services

You can try our Service and explore for yourself why we are the leading SMS service providers in chennai

Transactional SMS helps to send reminder messages, alert messages, automated notifications, and updates to your existing customers. It helps to send bulk SMS easily to all over India with web interfaces. Transactional SMS is used by businesses to relay transactional information and Service explicit SMS can be sent 24x7 with no time restriction. The officially shared informations also comes under Transactional SMS Services.

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OTP or One Time Password is an integral part of the SMS marketing process. OTP SMS service is the easiest way of verifying online transactions and user information. We provide OTP SMS for new user registration, passwordless logins, and transactional authentication. This will reduce informal login attempts and it will add a security layer to the contents and for login credentials. Assist to optimize and secure your backend systems against spam, etc.

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A Promotional SMS is helps to send a message to customers about promotions, discounts, and offers. Brands send promotional SMS to increase customer engagement and rocket sales. Customize your promotional messages as per your target customers. Rat SMS helps to send any offers or promotions to new and existing customers.

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We appreciate your business enquiry. Our team will respond within 24 business hours with Packages and Pricing information.

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