Bulk SMS Marketing · CaseYug Groups

BULK SMS
MARKETING_

Bulk SMS marketing campaigns - promotional, transactional, OTP, targeted, and retargeting - are planned, registered, and delivered across India's mobile networks through TRAI DLT-compliant high-throughput SMS gateways that reach every active SIM card, on any network, with any handset.

DLT Registered 98% Delivery Rate Promotional & Transactional OTP & API Segmented Targeting Real-Time Reports
Bulk SMS Marketing Promotional SMS Transactional SMS OTP SMS SMS API Integration DLT Registered Campaigns Targeted SMS SMS Retargeting TRAI Compliant High Delivery Rate SMS Analytics Enterprise SMS Gateway Bulk SMS Marketing Promotional SMS Transactional SMS OTP SMS SMS API Integration DLT Registered Campaigns Targeted SMS SMS Retargeting TRAI Compliant High Delivery Rate SMS Analytics Enterprise SMS Gateway
98%SMS Delivery Rate
10Cr+SMS Sent Monthly
3 MinAvg. Read Time
100%DLT Compliant

SMS GATEWAY DASHBOARD

LIVE · DLT VERIFIED

ONLINE
Diwali Offer - Retail Chain98.2%

Sent

48,200

Delivered

47,316

Appointment Reminder - Clinic99.7%

Sent

3,840

Delivered

3,827

OTP Delivery - Banking App99.9%

Sent

12,500

Delivered

12,498

Delivery Speed

<30 sec

average time to handset

TRAI DLT

Registered

About This Service

What Is Bulk SMS Marketing?

Bulk SMS marketing is the practice of sending large volumes of pre-approved text messages simultaneously to a database of mobile numbers - reaching customers, prospects, and stakeholders directly on their handsets within seconds of transmission, without requiring an internet connection, a smartphone, or any installed application.

In India, bulk SMS is regulated by the Telecom Regulatory Authority of India (TRAI) through the Distributed Ledger Technology (DLT) platform - which requires all commercial SMS senders to register their business entity, sender ID, and message templates before any promotional message can be delivered. This compliance framework ensures that messages are delivered reliably across all networks and protects recipient privacy.

All networks & handsets covered
DLT registration handled
160-character precision messaging
Real-time delivery tracking
Services Offered

Six Bulk SMS Marketing Services

Every service is TRAI DLT registered, delivered through a high-throughput gateway with real-time reporting.

01

Reach Millions. Instantly.

Promotional SMS Campaigns

Promotional bulk SMS campaigns are sent to opted-in customer databases and prospective audiences to communicate offers, discounts, new product launches, event invitations, and seasonal promotions. A 160-character SMS message is received, opened, and read within minutes of delivery - making bulk SMS the fastest and most cost-efficient mass communication channel available for any business with a local or national customer base in India.

TRAI-compliant DLT registeredCustom sender IDScheduled delivery
02

OTPs. Alerts. Confirmations.

Transactional SMS Services

Transactional SMS messages - one-time passwords, order confirmations, delivery alerts, appointment reminders, payment receipts, and account notifications - are delivered instantly, 24 hours a day, seven days a week, with guaranteed delivery priority over promotional messages. Transactional SMS is registered under a separate DLT category with no time-restriction on delivery and higher priority routing through telecom networks.

24×7 instant deliveryPriority routingDLT transactional category
03

Right Message. Right Audience.

Targeted & Segmented SMS

Segmented SMS campaigns are sent to defined audience subsets - filtered by geography, age group, purchase history, product interest, or campaign response behaviour - ensuring that the message received by each segment is relevant to their profile. A targeted SMS campaign consistently delivers higher response rates than a generic broadcast because the content is matched to the recipient's demonstrated interest and context.

Geo-targeted deliveryDemographic filteringBehavioural segmentation
04

Re-engage. Recover. Convert.

SMS Retargeting Campaigns

SMS retargeting campaigns are sent to audiences who have interacted with the brand previously but have not converted - website visitors who did not enquire, past customers who have not returned, event registrants who did not attend, and leads who went cold. A well-timed, relevant SMS to an audience that already has brand awareness converts at significantly higher rates than cold outreach to unknown audiences.

Lapsed customer recoveryLead re-engagementCart abandonment alerts
05

Built Into Your System.

API & OTP SMS Integration

SMS API integration connects the bulk SMS gateway directly to a website, mobile application, CRM, or e-commerce platform - enabling automated OTP delivery, account verification, order updates, and system-triggered alerts to be sent without any manual intervention. The SMS API supports REST-based integration with standard authentication, delivery report webhooks, and real-time message status tracking.

REST API integrationOTP & verification flowsDelivery webhooks
06

Every Number Accounted For.

Campaign Analytics & Reporting

Bulk SMS campaign analytics cover delivery rate, open rate (through link tracking), click-through rate, response rate, opt-out rate, and network-wise delivery breakdown. Every campaign generates a detailed performance report that includes delivery confirmation per recipient number, geographic distribution of responses, and cost-per-delivery analysis - enabling budget allocation decisions to be made with data, not assumptions.

Real-time delivery reportsLink click trackingNetwork breakdown
SMS Categories

Four SMS Message Types

Marketing

Promotional SMS

Marketing offers, events & campaigns - with DND restrictions (9AM–9PM)

Operations

Transactional SMS

OTPs, alerts, confirmations - unrestricted 24×7 delivery

Security

OTP SMS

One-time passwords for login, verification & payment auth

Broadcast

Voice SMS

Pre-recorded audio message broadcast via automated calling

Industries Served

Bulk SMS for Every Business

Retail & eCommerce
Healthcare & Clinics
Education & EdTech
Banking & Finance
Automotive
Real Estate
Restaurants & F&B
Logistics & Supply Chain
Why Bulk SMS Works

The Case for Bulk SMS Marketing

SMS reaches every phone. No app. No internet. No algorithm. Just your message - delivered directly to the handset.

Messages Are Read Within Minutes of Delivery

Studies on SMS consumer behaviour consistently show that over 90% of SMS messages are read within three minutes of being received - regardless of the time of day, network, or device. This immediacy makes SMS uniquely effective for time-sensitive promotions, appointment reminders, and urgent notifications where the message needs to be seen quickly.

Every Mobile Number Is Reachable - No App Required

Unlike WhatsApp, email, or push notification marketing - all of which require a smartphone, an internet connection, or an installed application - an SMS is delivered to every active SIM card on any mobile network in India. A 2G feature phone in a rural area receives the same SMS as a 5G smartphone in a metro city, which makes bulk SMS the most universally reaching direct communication channel available.

Cost Per Reach Is the Lowest of Any Direct Channel

At ₹0.10–₹0.20 per SMS depending on volume and category, bulk SMS delivers brand messages to thousands of recipients at a cost that no other direct advertising medium can match. When measured against the reach, immediacy, and open rate delivered, the return on investment from a well-targeted SMS campaign consistently exceeds that of email, digital ads, and print for local and regional campaigns.

TRAI DLT Registration Ensures Full Legal Compliance

All promotional SMS campaigns are run through TRAI's Distributed Ledger Technology (DLT) platform - which requires the sender's entity, header, and message template to be registered before any promotional message can be sent. DLT compliance protects the brand from spam complaints, ensures delivery through all telecom networks, and guarantees that messages are received by opted-in recipients.

SMS Campaigns Can Be Live in Hours

Once DLT registration is complete and message templates are approved, a bulk SMS campaign can be loaded, scheduled, and sent within hours - making it the fastest-to-deploy direct marketing medium available. For flash sales, same-day event announcements, emergency communications, and last-minute offers, nothing matches SMS's speed from brief to delivery.

Network Coverage

Every Network. Every State.

Messages are delivered across all major Indian telecom networks simultaneously - with automatic failover routing to ensure maximum delivery even during network congestion.

Jio

99.2%

Airtel

98.8%

Vi (Vodafone)

97.4%

BSNL

95.1%

SMS Pricing (Per Unit)

₹0.18

< 50K SMS

₹0.14

50K–5L SMS

₹0.09

5L+ SMS

*Indicative rates. Final pricing based on volume, category, and route. DLT registration charges separate.

Our Process

DLT Registration to Delivered. Reported.

Every SMS campaign follows a five-stage process - from DLT registration and list cleaning through template approval, sending, and performance reporting.

1

DLT Registration

The business entity, sender ID (header), and all message templates are registered on the TRAI DLT platform. Registration is mandatory for all promotional SMS campaigns in India.

2

List Upload & Clean

The customer database is uploaded, cleaned for duplicates, invalid numbers, and DND-registered numbers (for promotional campaigns), and segmented by the required audience criteria.

3

Template & Message

The SMS message is written within the approved template format - concise, clear, with a strong call to action and a short URL or callback number where applicable.

4

Schedule & Send

The campaign is scheduled for the optimal delivery window - typically 10AM–7PM for promotional messages - and sent through the high-throughput gateway to all valid numbers.

5

Report & Analyse

A delivery report covering sent, delivered, failed, and opted-out counts is generated per campaign. Click tracking data and response rates are compiled into a monthly performance summary.

Client Results

Campaigns That Delivered Results

Retail Promotion

"Bulk SMS campaigns were run for our weekend sale promotions across four store locations for six consecutive months. The response rate - measured by footfall during the promotional period compared to non-promotional weekends - was consistently three to four times higher on SMS campaign weekends, at a total spend that was less than one-tenth of our newspaper insert budget for the same period."

AR

Anand Rajagopal

GM Marketing, Rajagopal Supermart Chain

Transactional SMS

"Transactional SMS was integrated with our hospital management system for appointment confirmations, OPD reminders, report ready notifications, and discharge follow-up messages. Patient no-show rates dropped from twenty-two percent to eight percent within the first quarter, and patient satisfaction scores for communication improved significantly in the same period."

MC

Dr. Meena Chandran

Operations Head, Chandran Hospital Group

API Integration

"OTP and delivery alert SMS were integrated via API into our logistics platform for driver verification, consignment dispatch alerts, and proof of delivery notifications. The integration was live within two days, delivery notifications reduced inbound customer service calls by forty-one percent, and the cost per notification was a fraction of any alternative we had evaluated."

VM

Vijay Muthukrishnan

CTO, FastTrack Logistics

Common Questions

Bulk SMS Marketing FAQ

Gateway Live

1.2 Billion Indian SIM Cards. Your Message Reaches Them All.

A DLT registration status check, campaign plan, and per-unit pricing are shared within 24 hours of receiving the brief. The first campaign is typically live within three to five business days of receiving the brief.

Rate card in 24 hrs · DLT registration handled · Live in 3–5 days