Multilingual chatbots for Indian languages: Tamil, Telugu, Marathi, Bengali and more
A multilingual chatbot for India supports major regional languages — Tamil, Telugu, Marathi, Bengali, Gujarati, Kannada, Malayalam, Odia, Punjabi and Hindi — alongside English, either through an explicit language menu or automatic detection. Voice availability varies by provider, so check per-language coverage for both chat and calls before launch.
- A language menu (pick your language) is more reliable than auto-detect for short or ambiguous first messages.
- WhatsApp templates need separate approved versions per language you plan to broadcast in.
- Voice availability differs by provider and language — check coverage before promising a regional-language voice bot.
- Test each language with native speakers before launch; machine-translated test messages miss real phrasing.
- Keep your knowledge base source documents in the languages you actually support, or the AI may translate inconsistently.
Language menu vs auto-detect
Two approaches work for a multilingual WhatsApp or web chatbot. A language menu, "Reply 1 for English, 2 for Tamil, 3 for Telugu...", is explicit and reliable, especially for short first messages where auto-detection can guess wrong. Auto-detect, where the AI infers the language from what the customer typed, feels more natural once conversations get going, but works best as a secondary layer after an initial language choice, not as the sole method for a business serving many regional languages.
A hybrid pattern suits most Indian businesses: show a short language menu on the very first message, then let the AI agent continue naturally in whichever language the customer actually types afterwards, switching again if the customer switches. This avoids forcing a customer who types in Hinglish into one rigid language.
Convo360 supports both patterns in the Flow Builder: a List Menu block for explicit choice, feeding into an AI agent configured per language, or leaving it to the AI to detect and match.
Indian language coverage for chat and voice
Convo360 supports every major Indian language for both chat and voice: Hindi, Bengali, Tamil, Telugu, Marathi, Gujarati, Kannada, Malayalam, Odia, Punjabi, plus English and global languages. Hinglish and other code-mixed input works naturally through the underlying LLM. Voice coverage depends on your chosen provider: Sarvam is built specifically for Indian languages, while Smallest.ai, ElevenLabs and OpenAI voices cover a broader but sometimes less India-tuned range.
| Language | Chat (LLM) | Voice (TTS) |
|---|---|---|
| Hindi | Full support | Sarvam, Smallest.ai, ElevenLabs, OpenAI |
| Tamil, Telugu | Full support | Sarvam is India-tuned; verify accent on other providers |
| Bengali, Marathi, Gujarati, Kannada, Malayalam, Odia, Punjabi | Full support | Varies by provider, check before committing to a launch date |
Because chat relies on the underlying LLM rather than a dedicated language model, all ten languages plus English work for text; voice depends on the text-to-speech provider you connect, so test the specific voice before promising a client a regional-language voice bot. If a voice isn't available on one provider, the platform can fall back to another supported option.
Templates need per-language approval
If you're broadcasting WhatsApp templates in multiple languages, say, a festive offer in both Tamil and Telugu for customers in different states, each language version needs its own template approval from Meta. Plan this into your campaign timeline; approval for a new language variant can take as long as the original template did.
| Step | What to do |
|---|---|
| Identify audience languages | Check your contact list's region/language field |
| Draft each template | Native or professionally translated, not literal machine translation |
| Submit per language | In WhatsApp Studio, one submission per language variant |
| Route by contact language | Use a custom field to send the right template version |
QA checklist before launch
- Test with native speakers, not just machine-translated sample messages: phrasing that reads fine translated can sound unnatural spoken by real people.
- Check your knowledge base source documents are actually in the languages you support, since an AI translating from an English-only source can introduce inconsistencies.
- Listen to voice output for each language, checking pronunciation of your product names and locations.
- Review Flow Logs after the first week for questions the bot mishandled in a specific language, and fix the prompt or knowledge base accordingly.
- Run a Preview / Try-it dry run in each language before publishing the flow live.
What multilingual support costs
Adding languages itself is not a separate line item on Convo360: languages are a configuration choice inside the Flow Builder, not a paid add-on. What you pay for is the plan tier you need: the Starter plan (₹999/month, excluding GST) covers WhatsApp and web chat in any language, while AI voice calls in regional languages need the Pro plan (₹2,999/month, excluding GST), which unlocks voice and every integration.
On top of the subscription, you pay the AI provider (OpenAI, Anthropic Claude or Google Gemini) and the voice provider (Sarvam, Smallest.ai, ElevenLabs or OpenAI) directly at their own rates, since Convo360 is a BYOK platform and adds no markup on tokens or minutes, see how BYOK pricing works. A business piloting three languages before a festive campaign would budget one Pro subscription plus whatever token and voice-minute usage those languages generate with their chosen providers.
Mistakes to avoid when adding languages
- Launching all ten languages on day one instead of your top two or three actual customer languages.
- Reusing one WhatsApp template's English wording as a literal translation instead of getting each language variant properly written and approved.
- Skipping native-speaker review and trusting machine-translated test messages as proof the bot works.
- Promising a regional-language voice bot before confirming that specific language is available on your chosen TTS provider.
- Leaving the knowledge base only in English and expecting consistent answers in every regional language.
Rolling out language by language
Rather than launching all ten languages simultaneously, start with the two or three most requested by your actual customer base: check Analytics or ask your team which languages come up most in support calls today. Get those working well, then expand. This keeps your knowledge base and template library manageable rather than maintaining ten half-tested versions at once. For voice specifically, see AI voice for regional languages and Hindi AI chatbot and voice bot for language-specific setup notes.
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Frequently asked questions
How many Indian languages does the chatbot platform support?
Convo360 supports Hindi, Bengali, Tamil, Telugu, Marathi, Gujarati, Kannada, Malayalam, Odia, Punjabi, English and other global languages, for both chat and voice, subject to provider coverage.
Do I need separate WhatsApp templates for each language?
Yes, each language variant of a template needs its own approval from Meta, since template content and approval are language-specific and not automatically translated, so budget the same review time for a new language variant as you did for the original.
Is auto-detecting the customer's language reliable?
It works reasonably well once a conversation has enough context, but a short first message can be ambiguous. An explicit language menu at the start is more reliable for businesses serving many regional languages.
Are all Indian language voices available for AI calling?
Voice availability depends on your chosen provider. Sarvam is tuned specifically for Indian languages, while Smallest.ai, ElevenLabs and OpenAI offer varying coverage, so always test the exact language before promising it, and the platform can fall back to another provider if a specific voice isn't available.
Should I launch all supported languages at once?
It's usually better to start with your two or three most common customer languages, get those fully tested, and expand gradually rather than launching all languages before any are properly QA'd.
Does adding more languages cost extra on Convo360?
No, languages are a configuration choice, not a separate fee. You pay for the plan tier you need (Starter or Pro for voice) plus your own AI and voice provider usage at their rates.
Related reading
Available across India — see WhatsApp & AI calling automation by state and city.