5 Best Bulk SMS Providers in India (2026)
Bulk SMS is one of the most popular communication options for businesses in 2026. There are hundreds of bulk SMS companies in India to choose from, and finding the best one isn’t always easy. Many people start by searching “cheapest bulk SMS,” or browsing forums online. But the answers they get can be confusing or shallow. That’s why we put together a carefully curated list of top bulk sms providers in India. Before you choose, make sure to do your due diligence.
List of Top Bulk SMS Providers in India: a glimpse
| Platform | Best For | Key Highlight | SMS Price | DLT Support |
|---|---|---|---|---|
| Digimiles | Operational Business Bulk SMS | Lifetime credit validity | ₹0.13–0.275/SMS | Full DLT handled for you, ~7 working days |
| Kaleyra | Complete CPaaS | Auto-Failover Routing | Custom Pricing | Assists, but you do it yourself. |
| Msg91 | Developer APIs | Suite of REST API | ₹0.16–0.25/SMS | Assists, but you do it yourself. |
| 2Factor | OTP Reliability | Voice-Fallback System | Custom ₹0.18 to ₹0.30/SMS | Assists, but you do it yourself. |
| Fast2SMS | Low-cost start | Start with even ₹100 | ₹0.11–0.25/SMS | Full DLT registration is handled. |
*Prices checked September 2026
How We Selected These Bulk SMS Service Providers
We looked at below six factors when comparing these bulk SMS providers.
Delivery Speed & Reliability
How quickly and consistently messages are delivered across promotional and transactional routes, during both normal and peak time, and failover systems.
DLT Compliance Support
The level of help the SMS provider offers with complete DLT process – entity registration, sender ID approval, SMS template registration, and ongoing compliance.
Pricing Transparency
Per SMS cost, highvolume discounts, DLT charges, extra fee (if any) and the overall pricing transparency.
API & Integration
REST APIs, quick-start guides, code snippets, API documentation, and how easily the SMS service can be connected with business tools.
Customer Support
Support options such as phone, email, live chat, tickets, knowledge base, and dedicated account managers, along with how quickly issues are resolved.
Features & Use Cases
The range of messaging services, technical capabilities, integrations, and the types of businesses and messaging needs the provider can support.
We’ve grouped these providers by the type of business each one suits best, from everyday business SMS to enterprise messaging to low-cost starter accounts and best DLT support. All five are compared on the same six points above.
Digimiles: Best for India Business Messaging
Digimiles is an Indian business messaging provider founded in 2016. It has more than 4,500 businesses using its services and works with companies across healthcare, finance, government, education, travel, apps, and D2C.
The company focuses mainly on transactional messaging that businesses use in their daily operations, such as OTPs, alerts, reminders, and transaction updates.
Key Features and Capabilities
- SMS API for connecting messaging with websites, apps, CRMs, and other business software.
- Real-time delivery status via API callback or manual checking from web dashboard.
- Transactional SMS 24×7 to both DND and non-DND numbers.
- Unicode SMS for Hindi, Tamil, Telugu, Kannada, Malayalam, Bengali, and other regional languages.
- Custom sender ID for brand recognition on every message.
- Automatic DND numbers filtering for promotional SMS.
- WhatsApp Business API and RCS messaging for rich branded messaging.
Digimiles Pros and Cons
Digimiles Pricing
Digimiles uses a pay-as-you-go model, so businesses can buy SMS credits when they need them instead of signing up for a monthly plan. The credits come with lifetime validity.
| SMS Volume | Price | Rate / SMS |
|---|---|---|
| 5,000 SMS | ₹1,375 +18% GST | 27.5 paisa |
| 10,000 SMS MOST POPULAR | ₹2,750 +18% GST | 27.5 paisa |
| 25,000 SMS | ₹6,000 +18% GST | 24 paisa |
| 50,000 SMS | ₹10,500 +18% GST | 21 paisa |
| 1,00,000 SMS | ₹20,500 +18% GST | 20.5 paisa |
| For higher volumes, get a custom quote, with rates going as low as 13 paisa/SMS depending on volume. | ||
No setup fee on any plan. DLT registration (mandatory before sending) costs ₹5,000 + GST per year, paid directly to the DLT operator – not to Digimiles.
Is Digimiles the Right Bulk SMS Provider for Your Business?
Digimiles is suited to businesses that use SMS as part of their regular customer or internal processes.
It can work well for startups, schools, apps, online businesses, financial services, and other organisations that need to send a steady flow of OTPs, alerts, reminders, or transaction updates.
If your main requirement is an all-in-one communication platform covering SMS, email, voice, and IVR, Digimiles may not cover everything you need.
Kaleyra: Best Bulk SMS Provider for Global Scale
Kaleyra, now part of Tata Communications, is built mainly for large businesses that need to send messages across different countries. It has a strong presence in industries such as banking, financial services, insurance, and e-commerce, where reliable communication is important.
SMS is only one part of Kaleyra’s offering. It also offers WhatsApp Business API, Voice, RCS, and Chatbots. This makes it useful for businesses that want to manage multichannel messaging campaigns.
Kaleyra has been in the messaging business since 2005. Over the years, it has built a large customer base among banks and other enterprises and expanded its services to multiple countries.
Key Features and Capabilities
- REST APIs and SDKs for developers who want to build messaging directly into their own systems.
- Real-time delivery tracking via DLR callbacks and a dedicated status API.
- Alphanumeric sender ID, DLT-registered for compliant delivery.
- Contact segmentation and scheduled campaigns from a single dashboard.
- Verified SMS (VSMS) that displays business branding on the message itself.
- Kaleyra DLT AI, an automated assistant for entity ID mapping and DLT template scrubbing.
- Txtly, a built-in link shortener that tracks clicks by device, browser, and location, with unique short-links per recipient.
Kaleyra Pros and Cons
Kaleyra Pricing
Custom / Enterprise Pricing
Kaleyra does not publish per-SMS or plan pricing. As a full CPaaS platform (SMS, WhatsApp, voice, email, RCS), pricing is quoted based on channel mix, volume, and specific compliance/security requirements. You’ll need to contact their sales team for a quote.
Is Kaleyra the Right Bulk SMS Provider for You?
Kaleyra makes more sense for large businesses that need SMS across countries or want multiple communication channels under one provider.
If you only need bulk SMS in India for OTPs, alerts, reminders, or regular business messages, Kaleyra may be more than you need. A simpler SMS platform can be easier to compare and manage in that case.
Msg91: Best Bulk SMS Provider for Developers
If you have ever looked for a high capacity SMS API in India, there is a chance you have come across MSG91. The company has been around since 2008 and has grown from an SMS provider into a much wider business communication platform.
SMS is still a big part of what MSG91 does, but it also offers WhatsApp, voice, email, RCS, web chat, and social messaging as well.
Key Features and Capabilities
- REST APIs and SDKs for connecting messaging with websites, apps, and other software.
- Plugins and integrations for platforms such as Shopify and Zoho.
- SendOTP 2.0, which can use multiple channels when delivering OTPs.
- Automatic route switching when the primary route is unavailable.
- Customer segmentation for sending different messages to different groups.
- Automated workflows for things like customer onboarding, abandoned carts, and re-engagement.
- A shared inbox for handling WhatsApp, web chat, email, RCS, Instagram, and Facebook conversations.
Msg91 Pros and Cons
Msg91 Pricing
MSG91 follows a prepaid wallet system. You add money to the account and the amount is deducted as messages are sent.
| Volume Tier | Rate / SMS | Notes |
|---|---|---|
| Low Volume | ₹0.25 +18% GST | Starting rate for smaller wallet top-ups |
| Mid Volume | ₹0.16 – ₹0.20 +18% GST | Rate improves as wallet balance increases |
| High Volume | As low as ₹0.16 +18% GST | Best available rate at scale |
| Enterprise | Custom | Contact sales for a quote |
Is MSG91 the Right Bulk SMS Provider for You?
If you want to build workflows and business communication around SMS, email, WhatsApp, RCS, and voice through one provider, MSG91 is a strong option to consider.
For example, use SMS for simple messages and OTPs, WhatsApp or email for invoices and documents, and voice as a fallback when an SMS is not delivered.
2Factor: Best Bulk SMS Provider for OTP Messages
2Factor is one of those SMS providers where the product focus is quite clear: getting verification messages to the user quickly.
The company is built around OTP and phone verification, with SMS and voice OTP APIs at the centre of its offering. It also provides transactional and promotional SMS, but OTP is where 2Factor stands out.
The most interesting part of 2Factor is its pay-per-delivery OTP model. For eligible OTP traffic, you pay when the message is delivered within 15 seconds on the first attempt. If it fails or arrives late, the credit is refunded and the message can be tried again.
Key Features and Capabilities
- Delivery can be tracked through DLR APIs, push callbacks, control-panel logs, and daily email reports, with GSM error details available through callbacks.
- The phone verification API can send verification codes through voice calls as well as SMS, including to landline numbers.
- Developers get sample code for PHP, Python, Node.js, Java and other languages to connect the service with their applications.
- Plugins are available for WooCommerce, Magento, WordPress, Shopify, Zoho and Salesforce.
- WhatsApp Business API and RCS are also available if you need to use other channels alongside SMS.
2Factor Pros and Cons
2factor SMS Pricing
| Plan | Rate | Volume |
|---|---|---|
| Startup SMS Plan | ₹0.30 / SMS | Up to 10,000 SMS monthly |
| Business SMS MOST POPULAR | ₹0.15 / SMS | Up to 50,000 SMS monthly |
| Enterprise SMS | Custom | Unlimited SMS volume |
| Enterprise plan includes custom integration, a dedicated account manager, and an SLA – contact 2Factor sales for a quote. | ||
Is 2factor the Right Bulk SMS Provider for You?
2Factor is a great provider when OTP SMS delivery is a core part of your business.
That doesn’t mean 2Factor is limited to OTPs. It also handles transactional and promotional SMS, but its strongest use case remains verification. If promotional campaigns or broader business messaging make up most of the traffic, other providers in this list can be a better match.
Fast2SMS: Best Bulk SMS Provider for Small Businesses
Fast2SMS has been around since 2011 and is based in Bhopal. Unlike providers that usually involve a sales team, Fast2SMS is built around a self-serve model. An account can be created, topped up and used online, which makes the service fairly accessible for small businesses, developers and individual users.
Fast2SMS also keeps the starting cost low. Its current bulk SMS pricing starts from ₹100, while higher wallet balances bring the SMS rate down as the messaging volume increases.
Key Features and Capabilities
- Supports multiple messaging routes: DLT-registered promotional/transactional SMS, voice SMS, and a no-DLT Quick SMS route.
- Real-time delivery reporting, including reasons for failed deliveries.
- REST API with API key-based authentication for integrating into existing apps and CRMs.
- Multilingual/Unicode support for sending in regional Indian languages.
- Easy-to-use dashboard especially with features like campaign scheduling and personalization.
- Free assistance with DLT registration and template approval.
- Automated routing intended to reduce message failure rates.
Fast2SMS Pros and Cons
Fast2SMS Pricing
| Wallet Top-up | Rate / SMS | Validity |
|---|---|---|
| ₹100 – ₹13,999 | ₹0.25 / SMS | 12 months |
| ₹14,000 – ₹59,999 | ₹0.17 / SMS | 12 months |
| ₹60,000 – ₹1,29,999 | ₹0.15 / SMS | 12 months |
| ₹1,30,000 – ₹5,99,999 | ₹0.13 / SMS | 12 months |
| ₹6,00,000+ | ₹0.11 / SMS | 24 months |
| OTP API: ₹0.35/SMS. Quick SMS (non-DLT route): ₹5.00/message. | ||
Is Fast2SMS the Right Bulk SMS Provider for You?
Fast2SMS is a perfect option if you want to start sending SMS quickly without a large upfront commitment. A small business, startup, developer or individual user can create an account, add as little as ₹100 and start from there.
However, if you want to use high volumes of transactional SMS or need dedicated account support, enterprise-level assistance, or more third-party references, it is worth comparing Fast2SMS with other providers on this list.
Frequently Asked Questions
What is a bulk SMS service provider?
A bulk SMS service provider helps businesses send text messages to their customers – such as OTPs, alerts, order updates, and promotional messages. Businesses can send them using the web dashboard (manually) or API (automated).
What’s the difference between an SMS gateway and a bulk SMS provider?
An SMS gateway is the technology that carries a message from an application to a mobile network. A bulk SMS provider gives businesses access to that application. That’s the reason bulk sms is also called A2P SMS (Application to Person).
What’s the difference between promotional and transactional SMS?
Promotional SMS is used to market a product, service, offer, event, or sale. These messages must be sent with a numeric sender ID in between 9 AM and 8 PM in a day and do not reach DND customers.
Transactional SMS is used to send informational sms – such as OTPs, payment confirmations, order updates, booking details, and account alerts. It can be sent 24/7 even to DND numbers with a 6 alphabetic sender ID.
Is DLT registration mandatory for bulk SMS?
Yes. Businesses that want to send bulk SMS in india must complete DLT registration. DLT process includes registering business as a Principal Entity, getting the Sender ID approved, and registering message templates.
How much does bulk SMS cost in India?
Bulk SMS pricing in India depends on the provider, message type, and the volume you want. Promotional and transactional SMS have different rates, and high volumes usually bring the per-SMS cost down. For example, Digimiles’ pricing drops from 27.5 paisa/SMS at 10,000 SMS to 20.5 paisa at 1,00,000 SMS.
Is DLT registration fee different from bulk SMS cost?
Yes. They are two separate costs. For bulk SMS, you pay the SMS provider. DLT registration is a separate process, and the applicable registration fee is paid to the DLT platform, such as Vodafone Idea’s Vilpower or Airtel’s DLT platform.
Which bulk SMS provider is best for OTP delivery?
For OTPs, delivery speed and reliability are more important than simply choosing a well-known provider. 2Factor, for example, offers SLA-based OTP pricing where the charge depends on successful delivery within its stated time window. Msg91 and Digimiles also offer transactional SMS routing built for speed, so it’s worth comparing their delivery performance directly if OTP reliability is a priority for you.
Can I send bulk SMS without DLT registration?
For regular bulk SMS communications in India, DLT registration is required. Some providers offer options such as Quick SMS or international routing that can be used in limited situations without the usual DLT setup. However, these options are not viable for regular bulk SMS communications.
Conclusion: Best Bulk SMS Providers in India
Choosing a bulk SMS provider in India isn’t just about finding the cheapest price. A service that works well for OTPs may not be the right fit for promotional campaigns, and honestly the cheap bulk SMS services may not always give you the support or features you need.
The five providers covered above have different strengths and pricing models, so the right choice depends on how you plan to use SMS. If you’re still unsure, start with their free trial and understand which works best for your needs.
Need help with DLT, API integration, or pricing?
Our team can help you choose the right option for your use case.