How Do You Write a Diwali Offer Message for SMS, Voice, WhatsApp and RCS?
A good Diwali offer message communicates one clear benefit, tells customers how long the offer is available and gives them one simple next step. The wording should be adapted to the channel: short text for SMS, a natural script for voice calls, a visual template for WhatsApp and a rich card for RCS. The examples below are starting points, not pre-approved campaign templates.
By Rohit Jadhav | Last updated: 22 October 2026
Nexcomm is a Pune-based business messaging provider that handles DLT registration, header approval and template submission for Indian businesses.
This guide provides adaptable examples for businesses planning festive promotions. It focuses on the message itself: what to write, which details to include and how to change the format for each communication channel.
For the wider festive campaign plan—including preparation, campaign timing and overall execution—visit our Diwali SMS campaign guide. If you are planning WhatsApp promotions, you can also explore our WhatsApp marketing service.
Important: Replace the placeholders with your actual offer, business details and dates. Check the applicable platform rules, customer consent requirements and approval process before sending.
1. What Should a Diwali Offer Message Include?
A useful Diwali offer message contains four things: the business name, the actual offer, its validity and a clear action for the customer. The exact format depends on the channel, but the offer should remain consistent wherever you communicate it. Avoid combining several discounts, unrelated announcements and multiple calls to action in one message.
Use this simple structure:
Business identity: Who is sending the message?
Offer: What does the customer receive?
Validity: When does the offer end?
Action: Should the customer visit, call, reply or open a link?
For example, a clothing store might offer a festive discount, while a sweet shop might offer free delivery above a qualifying order value. A jewellery business may prefer to invite existing customers to view a collection or book an appointment.
The message should describe the actual offer. Do not advertise a discount, free gift or benefit unless the business is prepared to honour it under the stated conditions.
Example: A general Diwali offer
Template:
Happy Diwali from [Business Name]! Enjoy [Offer] on [Products] till [End Date]. Visit [Store/Website] or call [Phone Number].
Why this format works:
The sender is identifiable.
The benefit is easy to understand.
The validity period is explicit.
The customer has a clear next step.
This is a starting point. Shorten or restructure it to meet the character limits and approval requirements of the channel you use.
2. What Are Some Diwali Offer Message Examples for Bulk SMS?
Bulk SMS works well when a business needs a short, text-based message for customers who can be contacted lawfully through its messaging setup. A promotional SMS should identify the sender, explain the offer and provide a clear next step. Keep the copy concise and ensure the submitted template and final message comply with applicable DLT requirements.
Here are examples you can adapt.
Example 1: General festive discount
Happy Diwali from [Business Name]! Get [Discount]% off on [Products] till [Date]. Visit [Website/Store].
Suitable for: Retail stores, fashion businesses and other eligible businesses running a defined festive discount.
Example 2: Sweet shop or food business
Celebrate Diwali with [Business Name]. Enjoy [Offer] on festive orders till [Date]. Call [Phone Number] to order.
Suitable for: Sweet shops, bakeries and food businesses.
Example 3: Jewellery or premium retail
Happy Diwali from [Business Name]! Explore our festive collection and ask about [Offer]. Visit [Store] till [Date].
Suitable for: Jewellery stores and premium retailers. Include a specific benefit only if it is genuinely available.
Example 4: Last-day offer reminder
Last day for the Diwali offer at [Business Name]. Enjoy [Offer] till [Time/Date]. Visit [Store/Website].
Suitable for: A genuine final-day reminder to eligible customers.
Example 5: Post-purchase thank-you message
Thank you for shopping with [Business Name]. Enjoy [Benefit] on your next purchase using [Code], valid till [Date].
Suitable for: Follow-up promotions where the customer is eligible and the communication is permitted.
How long should a Diwali SMS be?
SMS length and billing depend on the character encoding and message structure. A standard GSM-7 SMS can generally contain 160 characters in a single segment, while concatenated messages typically allow 153 characters per segment. Unicode messages, including many messages containing Indian-language characters, have lower limits.
Do not assume a message will fit into one segment just because it looks short. Special characters, language and encoding can affect segmentation and cost. Check the final text using your provider's SMS counter.
What should you check before submitting an SMS template?
Before sending a promotional SMS, confirm:
The sender header and template are registered where required.
The final message matches the approved template.
Variable fields are used correctly.
The message category is appropriate for the content.
Recipient eligibility, consent and applicable preferences have been checked.
Links and business details are correct.
The exact requirements depend on the current regulatory framework and your messaging provider's setup. Confirm the applicable requirements through the TRAI advice for senders and your DLT portal.
3. How Do You Write a Diwali Promotional Voice Call Script?
A Diwali promotional voice call should sound natural when read aloud. Introduce the business immediately, state one main benefit, mention the offer's validity and explain what the listener can do next. Unlike SMS, a voice script must be easy to understand on the first listen, so avoid long sentences, complicated conditions and several offers in one recording.
Example 1: General festive voice call
Sample script — adapt before use:
“Namaste! This is [Business Name], wishing you and your family a very Happy Diwali. We are offering [Offer] on [Products/Services] until [Date]. To know more, please contact us at [Phone Number] or visit [Store/Website]. Thank you, and Happy Diwali!”
Example 2: Existing customer offer
“Namaste from [Business Name]. Thank you for being our customer. This Diwali, you can enjoy [Offer] on [Products/Services] until [Date]. Please contact [Phone Number] for details. We wish you a happy and prosperous Diwali.”
Use this only when the customer relationship and applicable contact permissions support the communication.
Example 3: Appointment or store visit
“Hello from [Business Name]. We invite you to explore our Diwali collection this festive season. Ask our team about [Offer] and visit us at [Location]. For details, call [Phone Number]. Happy Diwali!”
How long should a voice-call message be?
There is no single ideal duration for every campaign. As a practical editing target, try a short script of around 20–30 seconds and read it aloud before finalising it.
Check the following:
Can listeners identify the business in the opening sentence?
Is the offer understandable without hearing it twice?
Is the phone number or next step easy to follow?
Are the conditions short enough to understand?
Does the script avoid misleading urgency or unsupported claims?
Compliance check: Promotional voice calls are subject to applicable telecom requirements. Confirm the current rules for sender and calling arrangements, consent, recipient preferences, permitted calling times and any applicable registration before launching. Do not assume voice calls follow precisely the same technical registration process as SMS.
4. What Are Some Diwali WhatsApp Marketing Template Examples?
WhatsApp can support richer promotional messages for eligible businesses, including images and interactive elements where the chosen product and template support them. Use an appropriate approved message template when required, contact only recipients permitted under the applicable policy, and ensure the offer is clear in the message body. An example is not automatically an approved or deliverable template.
Example 1: Diwali offer with an image
Header: Festive offer image
Message:
Hi {{1}}, Happy Diwali from {{2}}!
Enjoy {{3}} on {{4}} until {{5}}. View the offer details below or contact our team if you need help.
Suggested button: View Offer
Example 2: Store visit invitation
Header: Diwali collection
Message:
Celebrate the festive season with {{1}}. Explore our Diwali collection and ask our team about {{2}}. Visit us at {{3}} or contact {{4}} for details.
Suggested button: Get Directions
Use location and button features only if they are supported by the integration and approved template.
Example 3: Thank-you message after a purchase
Message:
Thank you for shopping with {{1}}. We hope you enjoyed your festive purchase. For details about future offers from {{1}}, please see our official website or contact our team.
A subsequent promotional offer must still satisfy the applicable messaging rules and consent requirements. Do not treat a purchase or service interaction as automatic permission for every future marketing message.
What should businesses check before sending WhatsApp promotions?
Confirm that the recipient has provided the required opt-in.
Use an appropriate template and approved content where required.
Make sure the template accurately represents the purpose of the message.
Check the current platform policy and applicable pricing.
Respect opt-outs and customer preferences.
Confirm that images, buttons and other features work with your actual integration.
For additional details on campaign setup, see Nexcomm's WhatsApp marketing service.
Important: WhatsApp Business Platform policies restrict certain categories of use. Political parties, politicians, political candidates, political campaigns and entities offering political campaign-related services are prohibited from using the WhatsApp Business Platform under its applicable policy. Businesses must check the current policy before planning a campaign; do not assume that a different template or provider removes a restriction.
5. How Can You Adapt a Diwali Offer for RCS Messaging?
RCS can present an offer using richer visual elements, such as images, cards and action buttons, where the recipient's device, network and service support them. The key is to design a compact card with one clear offer and one useful action. Because availability and provider capabilities vary, verify support, approval requirements and fallback handling before including RCS in your campaign.
Example: A Diwali RCS offer card
Business name: [Business Name]
Image: A festive visual showing the actual product or offer
Title: Celebrate Diwali with [Business Name]
Message: Enjoy [Offer] on [Products] until [Date]. View the details and applicable terms.
Possible action buttons:
View Offer
Call Us
Get Directions
Use only actions supported by the RCS service you are using. Confirm that the linked page works on mobile and accurately describes the offer.
What if a customer's device does not support RCS?
Do not assume every recipient can receive or display an RCS message. Ask your provider how device eligibility is checked, what happens when delivery is unavailable and whether an SMS fallback is supported.
A fallback should use an appropriately approved SMS template and follow the same applicable recipient and sending requirements. Confirm how fallback is triggered and billed rather than assuming it happens automatically.
6. How Do You Adapt One Diwali Offer Across Different Channels?
Keep the underlying offer consistent, but rewrite the message for the format and behaviour of each channel. SMS needs concise text, voice needs spoken language, WhatsApp can use supported visual and interactive features, and RCS can display a rich card on compatible devices. This approach reduces inconsistencies while allowing each message to work naturally.
Suppose a retailer is offering a festive discount on a defined product range until a specified date.
Channel | What to emphasise | Suggested action |
|---|---|---|
Bulk SMS | Offer, validity and short details | Visit or call |
Voice call | Business identity, spoken offer and next step | Contact the team |
Offer image, concise copy and supported buttons | View the offer | |
RCS | Visual card, short offer and supported actions | Open the offer |
Before sending, check that all versions agree on the discount, product eligibility, end date and terms. If the offer changes, update every relevant version and complete any required approval process before sending the revised message.
How can you tell which message performs better?
Use a consistent offer identifier or channel-specific code where practical, and record results against the relevant campaign. For example, a business may use different codes for SMS and WhatsApp, provided the codes work with its actual checkout or sales process.
Depending on the channel and provider, useful measurements may include:
Messages accepted or delivered, where reported.
Replies or enquiries received.
Visits or calls attributable to the campaign.
Redemptions or completed purchases.
Opt-outs and customer complaints.
Total campaign cost against the outcome.
Do not compare channels using different measurement methods without accounting for the differences. A delivery report alone does not prove that a message generated a sale.
For the broader planning process—including campaign preparation and timing—use the Diwali SMS campaign pillar.
7. What Mistakes Should You Avoid in Diwali Offer Messages?
The most common avoidable mistakes are unclear offers, missing validity dates, incorrect links, excessive wording and inconsistencies between channels. Businesses should also avoid sending messages without the required permissions or using content that does not match the applicable approval. Review every example with the actual offer details before submitting or scheduling it.
Mistake 1: Mentioning a discount without explaining its conditions
Instead of saying “Huge Diwali savings,” specify the actual offer and any material eligibility conditions.
Mistake 2: Using a link without checking it
Open every link on a mobile device. Check that it reaches the correct page and that the offer is visible without unnecessary steps.
Mistake 3: Using the same copy everywhere
A long voice script is not a good SMS. A plain-text SMS may not make the best use of supported visual features in WhatsApp or RCS. Adapt the format while keeping the offer consistent.
Mistake 4: Sending too many reminders
Repeated messages across several channels can frustrate customers. Set a sensible communication plan, suppress recipients who have already responded where appropriate, and respect opt-outs.
Mistake 5: Assuming a sample is approved
Templates and scripts in this article are illustrative examples. They are not registered DLT templates, approved WhatsApp templates, certified RCS cards or verified voice recordings. Complete the relevant approval and compliance checks for the real campaign.
Mistake 6: Ignoring customer permissions and current rules
Check applicable telecom requirements, recipient preferences and platform policies before sending. Do not rely on old campaign instructions or assume that one channel's approval covers another.
Frequently Asked Questions
Which Diwali offer message is best for customers?
The best message is the one that clearly explains a real offer and makes the next step easy. Choose the format based on your customers, the information they need and the channel you are permitted to use. A short SMS may suit a simple discount, while a supported visual message can help explain a product offer.
Can I use the same Diwali offer message for SMS and WhatsApp?
You can keep the offer and validity consistent, but adapt the wording and format for each channel. SMS has character and encoding considerations, while WhatsApp may support approved templates, images and buttons. Check the applicable requirements and recipient permissions for each channel before sending.
Do Diwali promotional SMS messages require DLT registration?
Indian business SMS campaigns must follow the applicable telecom and DLT requirements, which can include sender-header and content-template registration. The exact requirements depend on the message and setup. Check the current TRAI guidance, your DLT portal and your messaging provider before sending a promotional campaign.
Can I send a Diwali offer through automated voice calls?
Automated promotional voice calls may be subject to applicable telecom rules and recipient restrictions. Before launching, confirm the requirements for your calling setup, consent, recipient preferences, permitted times and any relevant registration or approval. A sample script alone does not establish that a campaign is compliant.
Can businesses use WhatsApp for Diwali marketing?
Eligible businesses may use WhatsApp marketing features subject to the current platform policy, required customer opt-in and applicable template rules. Businesses should verify the policy and their integration's capabilities before sending. Some categories of use are prohibited on the WhatsApp Business Platform, so do not assume every type of campaign is permitted.
Does RCS reach every mobile phone?
No. RCS availability depends on factors such as device, network, software and service support. Confirm eligibility and fallback behaviour with your provider. If SMS fallback is available, make sure the fallback message and sending process meet the applicable requirements.
Need Help Preparing Your Festive Messages?
A well-written offer is only one part of a successful campaign. The message must also match the actual promotion, the recipient permissions and the requirements of the channel being used.
If you are preparing a business messaging campaign, share your offer details, target audience and preferred channels with Nexcomm. The team can help you discuss the relevant messaging setup and requirements.
For broader campaign planning, start with the Diwali SMS campaign guide. For WhatsApp setup, see the WhatsApp marketing service.
