Top 10 Bulk SMS Providers in India (2026)
Looking for the best bulk SMS provider in India? If yes, we’re here to assist you. Whether you run a small business or manage SMS for a large company, picking the right bulk SMS gateway provider makes a huge difference. This guide compares 10 top providers so you can choose what works for you.
Quick Summary: Top 10 Bulk SMS Providers in India
| Provider | Starting Price | Free Trial | Best For |
| Digimiles | ₹0.13/SMS | Yes | Operational business SMS |
| Msg91 | ₹0.25/SMS | No | Multi-channel API teams |
| Kaleyra | Custom pricing | No | Enterprise BFSI, global scale |
| 2Factor | ₹0.18/SMS | Yes | OTP reliability |
| Kapsystem | ₹0.13/SMS | Yes | Lowest pricing, high volume |
| SMS country | ₹0.24/SMS | Yes | Global reach |
| SMSGatewayHub | ₹0.165/SMS | Yes | Multiple channels |
| SpringEdge | ₹0.14/SMS | Yes | India-focused, fast OTP |
| Exotel | ₹0.18/SMS | Yes | Cloud telephony, calls + SMS |
| Fast2SMS | ₹0.11/SMS | Yes | Small businesses, low-cost start |
What is Bulk SMS Service and Why Do Businesses Need It?
Bulk SMS lets you send one message to hundreds or thousands of customers at once. You write your message once, upload a list of phone numbers, and hit send. Within seconds, everyone on your list gets the message on their phone.
Businesses use bulk SMS for three main types of messages:
1. Transactional SMS: These are important messages triggered by customer actions. Think order confirmations from Flipkart, payment alerts from your bank, OTP SMS when you log into an app, or delivery updates from Swiggy. These messages can be sent 24/7, even to people who have registered their numbers on DND (Do Not Disturb). They’re time-sensitive and customers expect them.
2. Promotional SMS: These are marketing messages about offers, discounts, new product launches, or sale announcements. Unlike transactional SMS, promotional messages can only be sent between 9 AM and 9 PM. They also cannot be sent to DND-registered numbers. Examples include “50% off on all shoes this weekend” or “New menu items now available.”
3. OTP SMS: One-time passwords are a special type of transactional SMS used for verification. When you sign up for a new app, make a payment, or log in from a new device, you get a code via SMS. These need to be delivered instantly-within seconds-not minutes. If OTP delivery is slow, customers will abandon your signup process or transaction.
Why do businesses still use SMS in 2026 when everyone has WhatsApp and email?
Well, it is because SMS has a 98% open rate. Email gets buried in spam folders or ignored. WhatsApp requires internet and the recipient must have the app. But SMS? It works on every phone, even basic feature phones. No internet needed. No app required. Almost everyone reads their text messages within minutes of receiving them.
That’s why bulk SMS service remains one of the most effective and reliable tools to reach customers in India, whether you’re a small shop sending festival offers or a bank sending millions of transaction alerts daily.
5 Key Things to Consider When Choosing a Bulk SMS Provider in India
1. DLT Registration and TRAI Compliance
Every business must register on a DLT platform before sending SMS. This is mandatory under TRAI regulation. You need to register your business entity, get a Sender ID (header), and approve your SMS templates. Some providers help you with DLT registration. Others just helps you with the process and you do it yourself.
2. Pricing Structure
Most providers charge per SMS, with prices dropping as you buy more. Watch out for setup fees, monthly commitments, API fees, credit validity, and hidden charges. Ask for the total cost, not just the per-SMS rate. Also check if they charge for delivered sms or submission – this could save you some money.
3. Delivery Speed and Reliability
Your SMS must reach customers in seconds, especially transactional and OTP. Check average delivery time (good providers deliver in 3-10 seconds), delivery rates (look for 95% or higher), and whether they have direct connections to telecom operators (Jio, Airtel, Vi, BSNL).
4. SMS API and Integration
If you’re a developer or have a tech team, you’ll want a good SMS API for automation. Look for easy-to-use HTTP/REST APIs, good documentation with code examples, plugins for WordPress or your CRM, and SDKs for programming languages.
5. Customer Support
When something breaks, you need help fast. Check support hours (24/7 or business hours only?), support channels (email, phone, chat?), response time, and whether they have a dedicated account manager for bigger accounts.
Good customer support means you can reach someone when your messages stop delivering at 2 AM before a big sale. Bad support means you’re stuck waiting for email replies while losing customers. Look for providers that offer phone support, WhatsApp support, or at least fast email responses (under 2 hours).
Common Use Cases for Bulk SMS in India
Different industries use bulk SMS in different ways. Here’s how businesses across India are using SMS today:
- E-commerce and Retail: Order confirmations, shipping updates, delivery notifications, abandoned cart reminders, flash sale alerts, and promotional offers. E-commerce businesses send both transactional and promotional SMS daily.
- Banking and Financial Services: OTP for transactions, account balance alerts, payment reminders, fraud alerts, loan approval notifications, and investment updates. Banks and fintech companies rely heavily on transactional SMS for security and compliance.
- Healthcare: Appointment reminders, prescription notifications, lab result alerts, vaccination schedules, and health tips. Hospitals and clinics use SMS to reduce no-shows and keep patients informed.
- Education: Admission confirmations, fee payment reminders, exam schedules, result announcements, parent-teacher meeting alerts, and emergency notifications. Schools and colleges use SMS to communicate with students and parents.
- Real Estate: Property listing alerts, site visit reminders, booking confirmations, EMI payment reminders, and possession notifications. Real estate developers use SMS to nurture leads and keep buyers updated.
- Travel and Hospitality: Booking confirmations, check-in reminders, flight status updates, itinerary changes, and loyalty program notifications. Airlines, hotels, and travel agencies depend on SMS for time-sensitive updates.
- Restaurants and Food Delivery: Order confirmations, delivery updates, promotional offers, feedback requests, and loyalty program messages. Food businesses use SMS to drive repeat orders.
Understanding your use case helps you choose the right SMS provider. If you need delivery in under 3 seconds, you’ll prioritize speed over price. If you’re sending promotional campaigns, you might focus more on cost and scheduling features.
How We Shortlisted the SMS Providers?
To shortlist the best bulk SMS providers in India, our team spent months exploring different dashboards, sending texts, and understandinge DLT compliance for almost 3 months.
We especially looked at:
- How helpful is the provider when it comes to complying with DLT.
- How easy it is to use the SMS dashboard.
- How scalable the SMS API is to integrate with 3rd party tools
- How competitive the pricing is and discounts on large volumes
- How instant the gateway is sending SMS.
Top 10 Bulk SMS Providers in India (Detailed Reviews)
1. Digimiles
Company Profile: Started in 2016, Digimiles serves 4,500+ businesses including Bank of Baroda, TATA Motors, and SBI. Specialises in transactional messaging, they process 10 million+ messages monthly with direct operator connectivity and connections.
What They Offer:
- SMS API for websites, apps, and CRMs
- Transactional SMS 24×7 to DND and non-DND numbers
- Unicode SMS for regional languages
- Custom Sender ID
- WhatsApp Business API and RCS messaging
Pros:
- SMS credits never expire (lifetime validity)
- Simple pay-as-you-go pricing
- Direct operator connectivity (3-5 second delivery)
- Full DLT registration handled for you
- 97.8% delivery rate – average over the decade
- Built specifically for Indian businesses
Cons:
- No 24/7 customer support
- No WordPress plugins or SDKs
Pricing:
- 5,000 SMS: ₹1,375 + GST (₹0.27/SMS)
- 10,000 SMS: ₹2,750 + GST (₹0.27/SMS)
- 25,000 SMS: ₹6,000 + GST (₹0.24/SMS)
- 50,000 SMS: ₹10,500 + GST (₹0.21/SMS)
- 1,00,000 SMS: ₹20,500 + GST (₹0.20/SMS)
- Higher volumes: As low as ₹0.13/SMS
Website: www.digimiles.in
2. Msg91
Company Profile: One of India’s most popular bulk SMS gateway providers, known for strong API and developer-friendly tools.
What They Offer:
- Strong SMS API with detailed analytics
- Multilingual SMS support
- Customizable Sender IDs
- Message scheduling
- TRAI DLT compliance
- Multi-channel messaging
Pros:
- Strong API for developers
- Detailed delivery reports
- Good for scale
- Multiple channels in one platform
Cons:
- No free trial
- Higher starting price
Pricing:
- 5,000 SMS: ₹0.25/SMS
- 16,500 SMS: ₹0.20/SMS
- 30,000 SMS: ₹0.18/SMS
- 60,000 SMS: ₹0.17/SMS
Website: www.msg91.com
3. Kaleyra
Company Profile: NASDAQ-listed enterprise communications platform, part of Tata Communications. Focuses on large businesses in banking, financial services, and e-commerce. Operates in 190+ countries.
What They Offer:
- SMS, WhatsApp, Voice, Email, RCS, and Chatbots
- REST APIs and SDKs
- Real-time delivery tracking
- Verified SMS (shows business branding)
- AI-powered chatbots; BFSI-grade security
Pros:
- Enterprise-grade security
- Multi-channel platform
- Dedicated account manager
- RBI/IRDAI compliance
Cons:
- No public pricing
- Overbuilt for basic SMS needs
- Longer onboarding
- Not for small budgets
Pricing: Custom enterprise pricing. Typical SMS rate: ₹0.13/SMS. Minimum annual commitment ₹5-25 lakhs.
Website: Kaleyra
4. 2Factor
Company Profile: Specializes in OTP and transactional SMS with SLA-based pricing where you only pay for OTPs delivered within 15 seconds.
What They Offer:
- SMS OTP with voice fallback
- Transactional and promotional SMS
- Lifetime validity on credits
- Simple HTTP API
- International OTP support
Pros:
- SLA-based OTP pricing (pay only for delivered)
- Free voice OTP fallback
- Credits never expire
- Volume discounts
Cons:
- Priority support only on higher plans
- OTP-focused features may be overkill for promotional SMS
Pricing:
- OTP SMS: ₹0.18/SMS
- Transactional SMS: ₹0.13-0.18/SMS
- Promotional SMS: ₹0.10-0.18/SMS
Website: www.2factor.in
5. Kapsystem
Company Profile: Known for some of the cheapest bulk SMS rates in India. Serves schools, hospitals, shops, real estate, and other businesses since 2010.
What They Offer:
- Promotional and transactional SMS
- RCS and WhatsApp
- Flash SMS
Pros:
- No setup charges
- No hidden costs
- Free testing available
Cons:
- Website and documentation could be better
- Less focus on enterprise features
- No 24/7 support
- Support response time is high
Pricing:
- 50,000 SMS: ₹10,000 + GST (₹0.20/SMS)
- 1,00,000 SMS: ₹15,000 + GST (₹0.15/SMS)
- 5,00,000 SMS: ₹65,000 + GST (₹0.13/SMS)
- Transactional/OTP: Starting ₹0.13/SMS
Website: www.kapsystem.com
6. SMS Country
Company Profile: Established provider with global reach across 180+ countries. Founded in 2003, SMS Country has been specialized as all-in-one cloud business messaging platform in India.
What They Offer:
- Bulk SMS (promotional and transactional)
- WhatsApp Business API
- Voice calls
- International SMS
- SMS API
- 2 way SMS
- Email2SMS
Pros:
- Global reach (180+ countries)
- Multi-channel platform
- Pay-as-you-use model
- 98% delivery rate
Cons:
- Higher starting price for India
- Credits expire after 120 days
Pricing: Starting ₹0.24/SMS, pay-as-you-use with volume discounts.
Website: www.smscountry.com
7. SMSGatewayHub
Company Profile: ISO certified provider since 2009 offering multiple communication channels.
What They Offer:
- Bulk SMS (transactional, promotional, OTP)
- Voice SMS/OBD
- Missed call service
- Cloud IVR
- WhatsApp Business API
- Bulk email
- SMS API and plugins
Pros:
- Multiple channels in one platform
- Pay only for delivered messages
- No setup fees
- Free trial credits
- Plugins for WordPress, WooCommerce, Excel
Cons:
- Pricing can be complex
- Sales-led for custom quotes
Pricing: Bulk SMS from ₹0.165/SMS, OTP from ₹0.185/SMS, Voice from ₹0.14/call.
Website: www.smsgatewayhub.com
8. SpringEdge
Company Profile: Bangalore-based platform focused on Indian market with direct operator connectivity and fast OTP delivery.
What They Offer:
- Bulk SMS (transactional and promotional)
- OTP SMS with sub-3-second delivery
- SMS API with SDKs for multiple languages
- Unicode SMS for Indian languages
- Direct operator connectivity
- Automated DLT compliance
- Reseller program
Pros:
- Sub-3-second OTP delivery
- Transparent pricing
- No monthly fees or setup costs
- Free trial (no credit card)
Cons:
- India-focused (limited international)
- Newer compared to some competitors
Pricing:
- 25,000-50,000 SMS: ₹0.16/SMS
- 50,000-1,00,000 SMS: ₹0.15/SMS
- 1,00,000+ SMS: ₹0.14/SMS
- 10,00,000+ SMS: Custom (as low as ₹0.12/SMS)
Website: www.springedge.com
9. Exotel
Company Profile: Cloud telephony platform powering 70M+ daily conversations for Ola, Swiggy, Flipkart, and HDFC Bank.
What They Offer:
- Cloud telephony (calls, SMS, WhatsApp);
- Multi-level IVR
- Call recording and analytics
- Number masking
- SMS API
- CRM integrations
Pros:
- Battle-tested by major Indian companies
- Credit-based pricing (predictable)
- Good for calls + SMS together
- Number masking for privacy
- 7-day free trial
Cons:
- More expensive if you only need SMS
- Admin UI feels dated
- Support can be slow
Pricing: Plans start at ₹9,999 for 5 months (5,000 credits). SMS from ₹0.18/SMS.
Website: www.exotel.com
10. Fast2SMS
Company Profile: Known for being one of the cheapest and easiest ways to start. You can start with just ₹100.
What They Offer:
- Bulk SMS (promotional and transactional)
- Quick SMS (non-DLT route)
- Voice calls
- WhatsApp Business API
- SMS API
- Multimedia attachments
- Reseller program
Pros:
- Can start with ₹100
- Cheapest rates (₹0.11/SMS)
- Self-serve setup (no sales process)
- Transparent pricing
- Free daily SMS for testing
- Full DLT registration handled
Cons:
- Support only Mon-Sat 10 AM-6 PM
- Less enterprise-focused; Basic features
- Less knowledgeable staff
Pricing:
- ₹100-₹13,999: ₹0.25/SMS
- ₹14,000-₹59,999: ₹0.17/SMS
- ₹1,30,000-₹5,99,999: ₹0.13/SMS
- ₹6,00,000+: ₹0.11/SMS
- OTP API: ₹0.35/SMS
Website: www.fast2sms.com
Frequently Asked Questions
What is DLT registration and why is it mandatory?
DLT registration is mandated by TRAI for all businesses sending commercial SMS in India. You must register your business entity, Sender ID (header), and SMS templates on a DLT platform. This prevents spam and ensures only approved messages reach customers. Most providers charge ₹5,000-₹6,000 for DLT registration for one year.
What’s the difference between transactional and promotional SMS?
Transactional SMS are informational messages triggered by user actions (OTPs, order confirmations, payment alerts). They can be sent 24/7, even to DND numbers.
Promotional SMS are marketing messages (offers, discounts) that can only be sent between 9 AM and 9 PM, and not to DND numbers.
How do I choose between transactional and promotional SMS routes?
Choose transactional SMS for messages that customers expect and need immediately – OTPs, order confirmations, payment alerts, delivery updates. These cost slightly more but deliver 24/7 to all numbers including DND.
Choose promotional SMS for marketing campaigns, offers, and announcements. These are cheaper but only deliver 9 AM-9 PM to non-DND numbers.
How much does bulk SMS cost in India?
Bulk SMS typically costs ₹0.10-₹0.25 per SMS depending on volume, message type, and provider. Most providers offer volume discounts where the per-SMS rate drops as you buy more.
Do I need an SMS API?
If you want to send SMS automatically from your website, app, or software, yes. An SMS API lets your system send messages programmatically. If you only need to send SMS on occasional campaigns, you can use the provider’s web dashboard instead.
What is a Sender ID?
A Sender ID is the name that appears as the sender of your SMS (like “AMAZON” or “HDFCBK”). It can be up to 6 characters for transactional SMS. You must register your Sender ID on the DLT platform before using it.
What is Unicode SMS and when should I use it?
Unicode SMS lets you send messages in Indian languages like Hindi, Tamil, Telugu, Bengali, Marathi, and others. Standard English SMS uses 160 characters per message. Unicode SMS uses only 70 characters per message because it uses a different encoding. Use Unicode when your audience prefers regional languages.
Which is the best bulk SMS provider for small businesses in India?
For small businesses just starting out, Fast2SMS and Kapsystem are good options because you can start with small amounts (₹100-₹500) and scale up. For businesses that need reliability and support, Digimiles and SpringEdge offer good balance of price and features.
Which is the best bulk SMS provider for OTP SMS?
For OTP delivery, 2Factor and Digimiles are excellent choices. 2Factor offers SLA-based pricing where you only pay for OTPs delivered within 15 seconds, plus free voice OTP fallback. Digimiles offers sub-3-second OTP delivery with direct operator connectivity. Both provide lifetime validity on credits.
Is bulk SMS legal in India?
Yes, bulk SMS is completely legal in India when done through TRAI-registered providers and DLT-compliant platforms. You must register your business, get Sender ID approval, and use approved templates. Using unregistered or non-compliant providers is illegal and can result in penalties.