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.

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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.

We Deliver High-Quality services like OTP SMS, Transactional SMS, Promotional SMS, Smart SMS Service with Free DLT Registration.

About the Company

RAT SMS is one of the leading and reliable Bulk SMS Service providers in India. We are Direct telecom operator connectivity with Airtel, BSNL, Vodafone, etc.

Our strength

Rat SMS assures the best deliverability with a 99.8% Success rate. We have 1000+ Happy SMS Clients Over 3 Years Of Experience And We Presence 7+ Major States In India.

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

Schedule SMS

No Matter what you are doing right now, just schedule your sms according to your preferred time, SMS auto blast according to schedule time.

Bulk SMS To

DND Numbers

We have a separate route for sending promotional SMS To DND Numbers across India.This technique helps to increase your sales leads.

Smart SMS Campaign

Import and Send your documents, Files, Images, Videos using our smart SMS Service, Get Free ₹20 Credit After Signup.

Our Services

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

Transactional bulk SMS service helps to send the message only to the subscribed users and the content of the sms should be only informative and transactional details. These will be sent to you only after a thorough verification process, checking that you have in fact approved such messages to be sent to you. Any transactions made by the user, updates in her/his account, and alerts are all sent in Transactional SMS. There is no time restriction.

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Easily Send Instant OTPs, Alerts & Smarter Bulk SMS Offers via Web Portal, APIs. OTP SMS service is the easiest way of verifying authenticating online transactions and user information. For checking the authenticity of the login requests, this happens to be essential. We are one of the top 10 OTP bulk sms service providers in Chennai.OTP SMS helps to prevent fraudulent purchases, avoid fake signups, it helps to Transaction Authentication.

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A Promotional SMS is a message sent 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 based on your campaign requirement and industry. Rat SMS helps to send any offers or promotions to new and existing customers. We send SMS to all sizes of businesses, across industries and geographies.

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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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