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India's #1 TRAI DLT Compliant SMS Gateway

Best Bulk SMS Service Provider in India

Accelerate business growth with sub-3 second OTP delivery, high-throughput Transactional & Promotional SMS, official WhatsApp Business API, and Voice OBD solutions with 99.99% uptime guarantee.

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10B+

SMS Delivered

50K+

Active Clients

< 3s

Avg. OTP Speed
Live SMS / OTP Demo
INSTANT API TEST

Experience our real-time high speed OTP delivery platform instantly:

Omnichannel Communication Platform

Connect with your customers across all major messaging channels from one unified platform.

OTP SMS Solutions

Ultra-fast sub 3-second OTP delivery with intelligent failover routes ensuring 100% login conversion rates for mobile apps and web platforms.

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Transactional SMS

Send critical alerts, banking transaction updates, flight/train updates, and order status 24x7 to both DND and Non-DND subscribers.

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Promotional Bulk SMS

Drive high ROI marketing campaigns, seasonal discounts, and brand awareness messages with targeted customer segmentation tools.

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WhatsApp Business API

Get official Meta Green Tick verification, automate customer support chatbots, and send rich media broadcasts with CTA buttons.

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Voice Call OBD & Voice OTP

Reach landline and mobile users with automated voice call broadcasts, multi-level IVR menus, and speech-to-text voice OTPs.

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Developer REST API

Easy 5-minute integration with pre-built SDKs and code samples for PHP, Python, Java, Node.js, C#, and cURL with instant callback webhooks.

View API Docs

Why Businesses Choose SMSINDIAHUB

Engineered for enterprise reliability, extreme delivery speed, and 100% TRAI compliance.

Direct Operator Connectivity

Direct SMPP connections with primary telecom operators (Airtel, Vi, Jio, BSNL) eliminates unnecessary middleman hops for maximum delivery rates.

Smart Failover & AI Routing

Our AI-driven smart routing engine monitors operator queue congestion in real-time and dynamically reroutes messages through the fastest path.

Full TRAI DLT Assistance

Free expert consultation to guide you step-by-step through DLT Entity registration, Header approval, and Content Template registration.

SMSIndiaHub Telecom Partners
Real-time SLA Guarantee

SMSIndiaHub maintains a guaranteed 99.99% infrastructure uptime SLA with 24/7 dedicated support desk for banking and enterprise customers.

Bulk SMS Cost Estimator

Calculate instant discounted pricing based on your monthly SMS volume:

Required SMS Volume: 50,000 SMS
Price Per SMS

₹0.13

Total Investment

₹6,500

Enterprise Custom Package?

Sending over 1,000,000 SMS monthly? Get customized SMPP pricing and dedicated support representative.

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Trusted By Enterprise Leaders

See what leading banks, corporations, and marketing executives say about SMSINDIAHUB.

"Easy to use service, Connected with SMSINDIAHUB for the last 5 years, great service & support for our banking operations."

UC
Umesh Chourasia
AGM ITS - State Bank of India (SBI)

"We are using missed call service for the past 4 years. Services and support both are awesome."

JS
Jeetendra Singh
Marketing Head - Eicher Tractor

"Simple and robust API with zero downtime. We use it for sending instant balance alerts to our banking users."

DP
Dipti
Sr. Developer - Solapur DCC Bank

Frequently Asked Questions

Everything you need to know about Bulk SMS, OTP delivery, and DLT compliance.

Bulk SMS is a service provided by SMS Aggregators like SMSINDIAHUB to businesses for promoting their products and services or for sending informational notifications, order alerts, and One-Time Passwords (OTPs) to customers simultaneously via web portal or API.

Distributed Ledger Technology (DLT) is a blockchain-based platform mandated by TRAI (Telecom Regulatory Authority of India) to control spam. All businesses in India must complete DLT Entity registration and get Header (Sender ID) and Template approval before sending SMS. SMSINDIAHUB provides complete assistance for DLT onboarding.

SMSINDIAHUB operates high-priority dedicated OTP pipes with direct operator connections. Average delivery latency is under 2 to 5 seconds across India.

WhatsApp Business API allows businesses to interact with customers officially via WhatsApp using verified phone numbers. You can apply directly through SMSINDIAHUB with automated onboarding and Green Tick verification assistance.