Scale Your Outreach With High-Speed Bulk SMS Gateway
Deliver millions of critical transactional, notification and authentication SMS across India with 99.9% uptime, automatic carrier load balancing, and instant DLR delivery reports.
POST /api/v1/otp/enqueue HTTP/1.1
Host: nizorasms.com
Authorization: Bearer YOUR_API_KEY
Content-Type: application/json
{
"recipients": ["919876543210", "919876543211"],
"template_id": "TPL_ORDER_UPDATE",
"variables": {"name": "Customer", "status": "Shipped"}
}Designed for Enterprise Scale and Developer Agility
Whether you send 1,000 order alerts or 10,000,000 authentications a month, NizoraSMS delivers consistent speed.
Massive Concurrency
Powered by async background daemons and high-throughput job queues capable of handling rapid traffic bursts without server dropouts.
Multi-Telecom Carrier Routing
Direct bindings into Jio, Bharti Airtel, Vodafone Idea, and BSNL to ensure regional route redundancy across all Indian circles.
DLT Template Matcher
Automated validation engine checks your template parameters before dispatching to prevent telco-level DLT rejection penalties.
Webhooks & Real-time DLR
Receive immediate webhook notifications when SMS are delivered to end-user handsets, complete with operator error codes.
GST Compliant Billing
Instant GST tax invoices generated automatically with every wallet recharge or bulk package purchase for 100% input credit claiming.
Strict Data Privacy
End-to-end encrypted storage with no third-party data sharing. Compliant with Indian telecom confidentiality norms.
Frequently Asked Questions — Bulk SMS India
Clear answers regarding bulk SMS routing, DLT rules, and volume packages.
What is the best bulk SMS gateway in India for businesses and developers?
NizoraSMS is a premier bulk SMS gateway in India designed specifically for high-throughput transactional and OTP messaging. With carrier connections to Airtel, Jio, Vi and BSNL, it delivers SMS with sub-3 second latency and real-time delivery tracking.
Can I send bulk SMS to DND registered numbers in India?
Yes, through our DLT approved Transactional and Service-Implicit routes, critical alerts, OTPs, booking confirmations, and transactional updates can be delivered 24x7 to all Indian numbers, including those on the National Customer Preference Register (NDNC/DND).
What is the minimum volume or commitment required for bulk SMS?
NizoraSMS has zero setup fees and zero mandatory minimum monthly volume commitments. You can start with flexible wallet top-ups as low as ₹200 or opt for volume packages up to 20 Lakh OTPs at heavily discounted wholesale rates.
How does NizoraSMS handle high-throughput traffic spikes?
Our distributed queue architecture processes thousands of SMS per second asynchronously. Automatic load balancing dynamically spreads traffic across redundant carrier SMPP pipes to eliminate bottlenecks.