Indian Language AI ChatbotAI that talks to customers in the language they actually use.
AI chatbots and voice agents that understand and reply in Hindi, Hinglish, Tamil, Marathi, Bengali and other Indian languages, on WhatsApp, web and phone.
- Hindi and Hinglish
- WhatsApp and voice
- Human handover
- Discovery Sprint1–4 weeks · Fixed price
- AI Enterprise OS Launch4–5 weeks · From ₹3.2L, one-time
- Multilingual Chatbot Build4–8 weeks · Fixed price per phase
How do you build an AI chatbot in Hindi and Indian languages?
Use models and speech services that handle Indian languages and code-mixed text such as Hinglish, test them on real customer messages and design replies for local phrasing. Stack18 builds multilingual chatbots and voice agents grounded in your knowledge base, with language detection, transliteration for Roman-script Hindi, speech recognition for regional accents and handover to human agents.
- Hindi chatbot
- Hinglish AI bot
- multilingual chatbot India
- regional language chatbot
- vernacular AI assistant
Last reviewed 11 November 2026 by the Stack18 delivery team in Jaipur.Security & AI governancePricing
| What it covers | Language coverage; Transliteration; Voice and voice notes; Knowledge grounding; Channels; Human handover. |
|---|---|
| Typical first step | Discovery Sprint: 1–4 weeks; fixed price. |
| Ready-made route | AI Enterprise OS Launch: 4–5 weeks; from ₹3.2L, one-time. |
| Main engagement | Multilingual Chatbot Build: 4–8 weeks; fixed price per phase. |
| Measured by | Resolution rate by language; Customer satisfaction; Handover rate; Response time. Each against an agreed baseline. |
| Governance | Human approval at 5 governance gates before anything reaches production. NDA available on request. |
| Delivery team | Based in Jaipur, India. A senior specialist replies within one business day. |
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Indian Language AI Chatbot, end to end.
The features and building blocks of an Indian Language AI Chatbot engagement. Each is delivered by the same team on the Agentic SDLC, with your approval at every critical step.
Language coverage
Hindi, Hinglish and the regional languages your customers use.
- Language detection
- Code-mixed text
- Regional variants
Transliteration
Roman-script Hindi understood and answered naturally.
- Hinglish handling
- Script choice
- Spelling variants
Voice and voice notes
Speech recognition and replies for calls and WhatsApp audio.
- Speech to text
- Text to speech
- Accent testing
Knowledge grounding
Answers from your content, in the user’s language.
- Multilingual retrieval
- Approved answers
- Citations
Channels
WhatsApp, website, app and phone.
- WhatsApp Business API
- Web widget
- IVR and voice
Human handover
Seamless transfer to agents who speak the language.
- Language-based routing
- Context transfer
- Agent dashboard
A typical engagement, step by step.
Senior people lead every phase. Specialised AI agents on the Agentic SDLC handle the repetitive work, and nothing ships without your approval.
Discover
We map today’s process, systems and data for language coverage, transliteration and voice and voice notes, talk to the people who run it and agree the baseline for resolution rate by language and customer satisfaction, so progress is measured from week one.
Design
We design the flows, roles, approvals and integrations for language coverage and transliteration, and review a clickable prototype or technical design with the people who will use it before anything is built.
Build
We build in weekly demos, starting with language coverage, then transliteration and voice and voice notes. Each release is tested on your own data and passes a human approval gate before the next begins.
Launch
We migrate data, train your team and support go-live. After 30 days we review resolution rate by language and customer satisfaction against the baseline and agree what to extend next.
How much does Indian Language AI Chatbot cost in India?
Most Indian Language AI Chatbot projects start with a Discovery Sprint (1–4 weeks, fixed price), which fixes the scope, team and price before you commit. AI Enterprise OS Launch costs from ₹3.2L, one-time and typically takes 4–5 weeks. Multilingual Chatbot Build takes 4–8 weeks at a fixed price per phase. Prices exclude GST. Cloud hosting and third-party usage, such as messaging, payment or AI model charges, are paid at cost.
Discovery Sprint
Teams deciding what to build first for Indian Language AI Chatbot, and what it should cost.
- Duration
- 1–4 weeks
- Pricing
- Fixed price
- Scoped plan and timeline
- Team and fixed price
- Process map or prototype
AI Enterprise OS Launch
Companies putting their first governed AI agent into production.
- Duration
- 4–5 weeks
- Pricing
- From ₹3.2L, one-time
- Private AI workspace
- Knowledge base
- Guardrails and audit
Multilingual Chatbot Build
Businesses serving customers in several Indian languages.
- Duration
- 4–8 weeks
- Pricing
- Fixed price per phase
- Language testing
- Chatbot and handover
- Analytics
What drives the price
- Number of modules, workflows and user roles
- Integrations with your ERP, CRM, payments, GST or messaging tools
- Volume and quality of data to migrate
- Compliance, security and audit requirements
- Mobile apps, offline use or multiple languages
Always included
- Fixed scope and price before build starts
- Weekly working demos and human approval gates
- Training, documentation and 30 days of hypercare
- Your code, data and IP, owned by you
See Stack18 pricing or compare fixed price and time and materials.
What we have shipped, and what a typical engagement looks like.
Delivered projects link to the full case study. Illustrative scenarios describe typical engagements and are not named client results.
Agri input company
- Challenge
- Farmers asked product questions on WhatsApp in Hindi, Marathi and voice notes.
- What we do
- A WhatsApp bot answering in three languages from the product catalogue, understanding voice notes and routing to agronomists.
- We would measure
- Resolution rate by language, customer satisfaction, handover rate, against a baseline agreed in week one.
7 weeks
Microfinance lender
- Challenge
- Repayment queries in Hindi and Bengali overwhelmed branch staff.
- What we do
- A multilingual WhatsApp and voice agent for balance, due date and payment links.
- We would measure
- Resolution rate by language, customer satisfaction, handover rate, against a baseline agreed in week one.
6 weeks
Ethnic wear D2C, Jaipur
- Challenge
- A ₹100+ crore brand needed website, app and back office to share one catalogue and one record of stock and orders.
- What we do
- Nine specialists built website, mobile app and ERP on one connected foundation in two-week sprints.
3 months
Read the case study →We agree targets before we start.
Free language test
Send 50 real customer messages. We show how the AI handles them.
- Accuracy by language
- Problem phrases
- Approach
Indian Language AI Chatbot questions.
Cost, timelines, integrations and ownership. If your question is not here, ask a senior specialist on a free 30-minute call.
Ask us anythingHow much does Indian Language AI Chatbot cost in India?
Most Indian Language AI Chatbot projects start with a Discovery Sprint (1–4 weeks, fixed price), which fixes the scope, team and price before you commit. AI Enterprise OS Launch costs from ₹3.2L, one-time and typically takes 4–5 weeks. Multilingual Chatbot Build takes 4–8 weeks at a fixed price per phase. Prices exclude GST. Cloud hosting and third-party usage, such as messaging, payment or AI model charges, are paid at cost.
Which Indian languages can the chatbot handle?
Hindi, Hinglish, Marathi, Gujarati, Bengali, Tamil, Telugu, Kannada, Malayalam, Punjabi and others, subject to testing on your content.
Can it understand WhatsApp voice notes?
Yes. Voice notes are transcribed and answered in text or voice.
Is translation good enough?
Pure translation often sounds unnatural. We test responses with native speakers and tune phrasing for each language.
Can it work over phone calls?
Yes, as a voice agent connected to your telephony provider.
Do you provide Indian Language AI Chatbot across India?
Yes. Stack18 is headquartered in Jaipur, Rajasthan, and delivers Indian Language AI Chatbot for businesses across India, including Delhi NCR, Mumbai, Bengaluru, Pune, Hyderabad and Ahmedabad. Work runs remotely with weekly demos, and on-site workshops are arranged for key milestones.
Let's scope your Indian Language AI Chatbot project.
Tell us where you are and where you want to be. A senior specialist will reply within one business day with next steps.
- Free 30-minute consultation
- Indicative estimate after the call
- NDA available on request