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Bulk SMS service for businesses across India
Bulk SMS lets you send one text message to thousands of customers at once, from a web panel or through an API. SMSNiti sets up your account, helps you register your sender ID and message templates, and gives you a delivery report for every promotional, transactional and OTP message you send.
Plans are built around your volume and message type. Tell us what you send and to whom, and we will reply with a quote that fits.
- Promotional, transactional and OTP
- DLT registration help
- Delivery reports and API
Overview
What is bulk SMS?
Bulk SMS (also called bulk text messaging or SMS marketing) is a way to send the same or a personalised text message to a large list of mobile numbers at once. Instead of typing messages one by one, you upload your contacts, write the message and let the platform deliver it through licensed telecom operators.
Short answer: Bulk SMS sends one message to many phone numbers at once. In India, a business needs a registered sender ID (header) and approved message templates under the DLT framework before its messages can be delivered.
Why businesses still use SMS
SMS works on every mobile phone. It needs no app, no data connection and no login, and people tend to open it quickly. That is why banks, online stores, schools, clinics and delivery companies still rely on it for alerts, one-time passwords and offers.
Panel or API
You can send from a web panel: upload an Excel or CSV list, write the message, schedule it and watch the report. Or connect your own software through an API, so that OTPs and order alerts go out automatically the moment something happens in your system.
Choose the right type
Promotional, transactional and OTP SMS
Every SMS you send belongs to one category. The category decides who you can message, when, and what the template can say. Pick the one that matches your message.
Promotional SMS
Offers, sales and announcements to customers who have not blocked marketing messages. Sent within the allowed calling hours.Transactional SMS
Order, payment, delivery and booking updates triggered by what the customer did. Delivered to DND numbers too.OTP SMS
One-time passwords for login, sign-up and payment verification, sent the moment they are requested.At a glance
Promotional, transactional and OTP SMS compared
Use this table to decide which type fits your message.
| Type | Used for | Reaches DND numbers? | Example |
|---|---|---|---|
| Promotional SMS | Offers, sales and announcements | No | "20% off this weekend. Shop now." |
| Transactional SMS | Updates about a customer's own action | Yes | "Your order is out for delivery." |
| OTP SMS | Login, sign-up and payment codes | Yes | "123456 is your login code." |
DND means the number is on the national Do Not Disturb register. Rules can change, so we confirm the current requirements with you before your first campaign.
How it works
How to start sending bulk SMS in India
The timeline depends mainly on how quickly the operator approvals come through. We keep you updated at every step.
Tell us your goal
Share what you want to send, who to, and roughly how many messages a month. We suggest the right SMS type and a plan that fits.Register your business on DLT
Indian telecom rules require every sender to be registered. We guide you through creating your entity record and keeping the documents ready.Register your sender ID and templates
Your sender ID (the six-letter name shown on the phone) and each message template are submitted for approval. We help you word templates so they pass first time.Set up your panel or API
We create your account, add your contacts and, if you need it, connect the API to your website, app or CRM.Send, track and improve
Launch a campaign, read the delivery report number by number, and use what you learn to improve the next one.What you get
Features of our bulk SMS service
A simple panel for marketing teams and an API for developers, with the reports both need.
Delivery reports
See the status of every message, number by number, as soon as the campaign finishes. Download the report for your records.API integration
Send OTPs, alerts and notifications from your own software with a developer-friendly API.Personalised messages
Add merge fields such as name, order number or due date so every message reads as if it was written for one person.Scheduling
Plan a campaign for the day and time your customers are most likely to read it.Clear campaign reports
A self-explanatory report appears on the panel once the campaign completes, so you know what was delivered and what failed.International SMS
Reach customers outside India when your business needs it. Tell us the countries and we will confirm availability.Stay compliant
The rules every sender in India must follow
Telecom regulation decides whether your SMS reaches the phone. We build these steps into your setup so you do not have to chase them.
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DLT entity registration: Your business is registered with a telecom operator on the DLT platform and receives a principal entity ID.
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Registered sender ID: The name that appears as the sender is approved in advance for the category you use.
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Approved templates: Each message follows a template approved for you, with variables for the parts that change, such as a name or an amount.
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Consent and DND: Promotional messages go only to people who have not opted out of marketing, and to those who gave consent. Transactional and OTP messages follow their own rules.
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Sending hours: Promotional messages can be sent only within the permitted hours of the day. Transactional and OTP messages are not limited in the same way.
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Registered links and numbers: Web links and callback numbers used in a template need to be registered first, otherwise the message can be blocked.
Who uses it
How different industries use bulk SMS
Whatever you sell, there is a message your customers want to receive. These are the most common ones.
Real estate
Promote new projects, share site-visit reminders and follow up with enquiries.E-commerce and retail
Send order, shipping and return updates, offer codes and cart reminders.Healthcare
Remind patients about appointments, test results and health-check campaigns.Education
Share exam results, fee reminders, school updates and event notices with parents and students.Banking and finance
Deliver transaction alerts, balance notices, payment reminders and verification codes.Hospitality
Confirm bookings, send check-in details and promote special offers to past guests.Why SMSNiti
Why businesses choose SMSNiti for bulk SMS
SMSNiti has worked in business messaging and marketing since 2011 from our office in Pune.
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Registration help: We guide you through DLT, sender ID and template approval, so you are not stuck on paperwork.
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Plans around your volume: You get a quote based on how many messages you send and which types, not a one-size-fits-all package.
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One partner for every channel: Add WhatsApp, RCS, voice calls and email later without starting again with a new vendor.
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People you can reach: Call or WhatsApp our team in Pune and talk to someone who knows your account.
Questions
Bulk SMS: frequently asked questions
Cannot find your question? Call or WhatsApp us and we will answer in plain words.
A bulk SMS service lets a business send text messages to many mobile numbers at once from a web panel or an API. It is used for offers, alerts, reminders and one-time passwords.
DLT (Distributed Ledger Technology) is the system Indian telecom operators use to register senders and message templates. Yes, you need it: messages from unregistered senders are blocked. Our DLT registration guide explains each step.
Promotional SMS carries offers and marketing and goes to people who have not opted out. Transactional SMS confirms an action the customer took, such as an order. OTP SMS carries a one-time code for login or payment. Each has its own sender ID type and templates.
Transactional and OTP messages can be delivered to DND numbers. Promotional messages cannot, unless the customer has given consent that is recorded under DLT.
A sender ID, also called a header, is the short name that shows as the sender on the recipient's phone, for example your brand name. It is registered and approved before you can use it.
A standard SMS holds 160 characters. Longer messages are split and joined on the phone, and each part counts as one SMS. Messages in Hindi, Marathi or other Indian languages use Unicode, which holds fewer characters per SMS (70 for a single message).
Yes. Regional-language messages are supported. They count as Unicode SMS, so the length limit per message is shorter.
Most messages reach the phone within seconds. Delivery also depends on the recipient's network and on the phone being switched on and in coverage. Your report shows the final status for each number.
Yes. We provide an API so your software can send OTPs, order updates and alerts automatically. Our team helps your developers get connected.
Yes. A shop, clinic or coaching class can use bulk SMS as easily as a large company. Plans are quoted by volume, so you pay for what you need.
Pricing depends on the SMS type and how many messages you send. Send us your requirement and our team will reply with a quote.
Talk to a messaging expert today
Tell us what you want to send and who to. We will suggest the channel and the plan.
