India's Most Reliable Bulk SMS Platform
Send millions of SMS instantly with 90%+ open rates. Promotional, Transactional & OTP SMS with 99.9% uptime, real-time delivery reports, and DLT compliance included. Starting at ₹2,500 for 10,000 SMS.
Choose Your SMS Route
Three distinct routes for every business need. All include DLT compliance assistance and real-time analytics.
Promotional SMS
Non-DND OnlyReach new customers with marketing offers, discounts, and promotions. Delivered to Non-DND numbers only.
Use Cases:
- Marketing campaigns
- Discount offers
- Product launches
- Event promotions
Sender ID: 6-digit numeric (e.g., 123456)
Availability: 10 AM – 9 PM (TRAI mandated)
Compliance: DLT Template registration required
Transactional SMS
DND + Non-DNDCritical business communications delivered to DND & Non-DND numbers 24×7. Highest priority routing.
Use Cases:
- Order confirmations
- Payment alerts
- Account notifications
- Booking confirmations
Sender ID: 6-char alphabetic (e.g., HDSIND)
Availability: 24×7, 365 days
Compliance: DLT Template registration required
OTP / Service SMS
Highest PriorityLightning-fast OTP delivery for 2FA, login verification, and transaction authentication. <1 second delivery.
Use Cases:
- Two-factor authentication
- Login verification
- Transaction OTPs
- Password resets
Sender ID: 6-char alphabetic (e.g., HDSOTP)
Availability: 24×7, instant delivery
Compliance: Service Implicit route, DLT required
Powerful Platform Features
Bulk Upload
CSV/Excel upload with 100K+ contacts per file. Auto-deduplication.
Schedule Campaigns
Send now or schedule for later. Recurring campaigns supported.
Real-Time Reports
Live delivery reports, open rates, click tracking, failed reason codes.
REST API (GET/POST)
Developer-friendly API with code samples in 8+ languages. Webhooks supported.
Unicode & Multilingual
Send in Hindi, Tamil, Telugu, Bengali, Marathi, Gujarati, and 15+ languages.
Auto-Retry Logic
Intelligent retry for failed deliveries with exponential backoff.
TRAI/DLT Compliant
Full DLT registration assistance included. Template approval tracking.
Long SMS Support
Automatic concatenation for messages exceeding 160 characters.
Trusted Across Every Industry
Banking & Finance
Transaction alerts, OTP for login, payment confirmations, EMI reminders
E-Commerce
Order updates, shipping notifications, promotional offers, cart abandonment
Healthcare
Appointment reminders, lab reports, medicine reminders, health tips
Education
Admission alerts, exam schedules, fee reminders, result notifications
Retail
Sale announcements, loyalty updates, store openings, feedback requests
Logistics
Delivery updates, OTP for verification, pickup scheduling, delay alerts
Real Estate
Property alerts, site visit reminders, payment schedules, new launches
Utilities
Bill reminders, payment confirmations, outage alerts, meter readings
Simple, Honest Pricing
Pay only for what you use. No hidden charges. Credits never expire. GST (18%) extra.
Starter
@ 25 Paisa/SMS+ 18% GST extra
- Transactional SMS
- Promotional SMS
- OTP Delivery
- DND Compliance
- Real-time Reports
- API Access
- 2 Year Validity
Growth
@ 20 Paisa/SMS+ 18% GST extra
✦ Includes 5,000 FREE SMS Bonus
- Transactional SMS
- Promotional SMS
- OTP Delivery
- DND Compliance
- Real-time Reports
- API Access
- Lifetime Validity
- Priority Support
Pro
@ 18 Paisa/SMS+ 18% GST extra
✦ Includes 14,000 FREE SMS Bonus
- Transactional SMS
- Promotional SMS
- OTP Delivery
- DND Compliance
- Real-time Reports
- API Access
- Lifetime Validity
- Dedicated Account Manager
Enterprise
@ 17 Paisa/SMS+ 18% GST extra
✦ Includes 32,000 FREE SMS Bonus
- Transactional SMS
- Promotional SMS
- OTP Delivery
- DND Compliance
- Real-time Reports
- API Access
- Lifetime Validity
- Dedicated Account Manager
Get Started in 4 Simple Steps
Sign Up Free
Create account in 30 seconds. Get ₹10 free credit instantly.
Complete DLT
Our team assists with Entity, Header & Template registration.
Upload Contacts
Import CSV/Excel or add manually. Auto-deduplication included.
Send & Track
Launch campaigns via dashboard or API. Real-time analytics.
Have Questions?
DLT (Distributed Ledger Technology) registration is a mandatory requirement set by TRAI for all businesses sending commercial SMS in India. Without DLT registration, your SMS will not be delivered. Hadronsoft provides free assistance for complete DLT registration.
Promotional SMS: Sent to Non-DND numbers only, 10 AM–9 PM, 6-digit numeric Sender ID. Transactional SMS: Delivered to DND & Non-DND 24×7, 6-character alphabetic Sender ID. OTP/Service SMS: Highest priority, instant delivery, for authentication only.
Hadronsoft delivers OTP messages in under 1 second on average with 99.9% uptime SLA. We use dedicated OTP routes with direct carrier connections for maximum speed.
Yes! Hadronsoft supports Unicode messaging in 15+ Indian languages including Hindi, Tamil, Telugu, Bengali, Marathi, Gujarati, Kannada, Malayalam, Punjabi, and more.
Absolutely. Hadronsoft provides a developer-friendly REST API (GET/POST) with comprehensive documentation, code samples in 8+ languages, webhook support, and Postman collection.
As per TRAI regulations, promotional SMS can only be sent between 10:00 AM and 9:00 PM. Transactional and OTP SMS can be sent 24×7.
No! Your wallet credits never expire. They are shared across all channels (SMS, WhatsApp, RCS, Voice) and can be used anytime.
Sign up for free at Hadronsoft, get ₹10 credit instantly. Our team will help with DLT registration (completed in 2-3 hours). Then upload contacts and start sending via dashboard or API.
Ready to Start Sending SMS?
Get ₹10 free credit on signup. Free DLT registration assistance. No credit card required.