A WhatsApp chatbot in India has three cost parts: Meta's per-message fees (₹0.8631 per marketing message and ₹0.115 per utility or authentication message, plus 18% GST), your platform provider's fee, and the one-time build cost. Evynta AI agent plans start from $500; the final quote depends on channels, languages and integrations.
If you run a business in Kolkata or anywhere in India, the price of a WhatsApp chatbot is rarely one number. Part of it goes to Meta, part to the company that builds and runs your bot, and part depends on how much your customers talk to it. This guide breaks down each part so you can budget accurately and compare quotes fairly.
The 3 Parts of WhatsApp Chatbot Cost
- Meta's message fees: charged per delivered message on the official WhatsApp Business API, by category.
- Platform or provider fee: the monthly cost to host the bot, manage templates and get support.
- Build and setup: designing conversations, training the AI on your content and connecting your CRM, payments or store.
Meta's WhatsApp Fees in India (October 2026)
Since July 2025, Meta bills each message separately, and the price depends on the category and the recipient's country. For +91 numbers, the published India rate cards show:
| Message category | Typical use | Rate per message | With 18% GST |
|---|---|---|---|
| Marketing | Offers, launches, cart reminders | ₹0.8631 | about ₹1.02 |
| Utility | Order, payment and appointment updates | ₹0.115 | about ₹0.136 |
| Authentication | OTPs and login codes | ₹0.115 | about ₹0.136 |
Volume discounts exist only for utility and authentication messages at very high monthly volumes. Marketing messages have none. Replies to customers who message you first include a monthly free allowance, and Meta changed how service replies are charged from 1 October 2026, so check Meta's official pricing page before you finalise a budget.
Worked Example: 5,000 Marketing and 10,000 Order Messages
| Item | Messages | Rate | Cost |
|---|---|---|---|
| Marketing offers | 5,000 | ₹0.8631 | ₹4,315.50 |
| Order and delivery updates | 10,000 | ₹0.115 | ₹1,150.00 |
| Subtotal | ₹5,465.50 | ||
| GST at 18% | ₹983.79 | ||
| Meta fees per month | ₹6,449.29 |
This covers Meta's fees only. Add your provider's monthly fee and any one-time build cost on top.
What Decides the Build and Platform Price
- Channels: WhatsApp only, or also web chat, voice calls and email.
- AI depth: fixed FAQ answers versus an AI trained on your catalogue, prices and policies (RAG).
- Integrations: CRM such as Zoho or HubSpot, payments such as Razorpay, or a Shopify store.
- Languages: English only, or Hindi and Bengali as well.
- Message volume: more conversations mean higher Meta fees.
| Type of chatbot | What it does | Typical launch time |
|---|---|---|
| Simple FAQ or booking bot | Answers common questions, takes bookings | 1 to 2 weeks |
| Full AI agent | Voice, RAG knowledge base and CRM integration | 3 to 4 weeks |
Evynta's AI agent plans start from $500. Ask for a fixed quote and we will price it from your channels and integrations.
5 Ways to Lower Your WhatsApp Chatbot Cost
- Use utility messages for order and appointment updates, which cost far less than marketing messages.
- Invite customers to message you first, so conversations stay inside the free service allowance.
- Send fewer, better-targeted marketing messages instead of blasting your whole list.
- Start with one use case, such as bookings or order tracking, then expand.
- Ask providers whether they pass Meta's rates through at cost or add a markup per message.
Official API vs Unofficial Tools
Cheap auto-reply apps that skip the official WhatsApp Business API can look like a bargain, but they risk getting your business number banned. Evynta only uses the official, Meta-approved API, so your number and customer conversations stay protected. See how this works on our WhatsApp AI agent page.
Pricing Notes for Kolkata Businesses
Hindi and Bengali support does not change Meta's fees, which depend on the recipient's country code. For +91 customers in Kolkata and West Bengal, the India rates above apply. If you want a local team that builds in English, Hindi and Bengali, see our WhatsApp chatbot service in Kolkata or the India page. For a provider comparison, read Best WhatsApp Chatbot Company in Kolkata.
Frequently Asked Questions
How much does a WhatsApp chatbot cost in India?
A WhatsApp chatbot in India has three cost parts: Meta's per-message fees (₹0.8631 per marketing message and ₹0.115 per utility or authentication message, plus 18% GST), your platform provider's fee, and the build cost. Evynta AI agent plans start from $500, and the final quote depends on channels, languages and integrations.
How much does the WhatsApp Business API cost per message in India?
As of 1 October 2026, India rates are ₹0.8631 per marketing message and ₹0.115 per utility or authentication message, before 18% GST. Confirm on Meta's official pricing page, because Meta updates its rate cards.
Is the WhatsApp Business API free in India?
No. The WhatsApp Business app is free, but the Business API charges per message in the marketing, utility and authentication categories. Replies to customers who message you first have a monthly free allowance, so check Meta's current rules.
Is GST charged on WhatsApp Business API messages in India?
Yes. Published India rate cards add 18% GST to Meta's per-message fees, so a ₹0.8631 marketing message costs about ₹1.02 with GST.
How long does it take to launch a WhatsApp chatbot?
A simple FAQ or booking bot typically launches in 1 to 2 weeks. A full AI agent with RAG, voice and CRM integration takes about 3 to 4 weeks. Evynta includes 30 days of free support after launch.
Rates are from published India rate cards for 1 October 2026 and may change. Always confirm on Meta's pricing page.
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