How CARS24 Scales Conversations With OpenAI for Indian SMEs
Imagine handling over 1 million AI conversation minutes every month and recovering 12% of leads you thought were gone for good. That is exactly what CARS24 achieved using OpenAI’s API, ChatGPT Enterprise, and Codex. For Indian SMEs, this case study holds practical lessons on automating customer conversations, reducing turnaround times, and building AI agents that actually work.
This guide covers:
- How CARS24 built voice and chat agents across buyer and seller journeys
- Key statistics on resolution rates, lead recovery, and time saved
- How Codex spread from engineering to finance and investor relations teams
- Practical steps Indian SMEs can take to replicate this approach
Let us dive into the strategies that made CARS24 a standout example of AI-powered conversation scaling in India.
- How CARS24 built AI agents for four buyer journey stages and three seller stages
- How they recovered 12% of lost seller leads after ten days of silence
- How Codex moved beyond engineering to finance, legal, and operations teams
- How your small business can start with similar AI tools using NaviGo Tech Solutions services
What Does It Mean to Scale Conversations With AI
CARS24 scales conversations with OpenAI by building AI voice and chat agents that handle every stage of buying and selling a car in India. This is not a simple chatbot. It is a full conversation system covering initial inquiries, test drive scheduling, post-visit follow-ups, and post-purchase support. The same structure applies to sellers: inquiry, inspection, and re-engagement.
The numbers are impressive. CARS24 handles over 1 million AI conversation minutes every month. Customer support resolution rates jumped by 50%. Turnaround time across key workflows dropped by 80%. And here is the real eye-opener: they recovered 12% of previously lost seller leads that had been written off after ten days of silence.
For an Indian SME, this means you can automate customer conversations without losing the personal touch. Whether you run a service business in Chennai or a retail store in Mumbai, AI agents can handle routine queries, schedule appointments, and follow up with leads automatically. You free up your team to focus on high-value work.
Why This Matters for Indian SMEs
Recovering Lost Revenue Without Extra Effort
Every SME loses leads. A customer calls, asks a question, and goes silent. Ten days later, you mark them as lost. CARS24 proved that AI agents can re-engage these leads. By building agents that automatically check in with silent sellers, they recovered 12% of those leads. For a small business, that could mean thousands of rupees in recovered revenue every month.
Reducing Response Times Builds Trust
Indian customers expect fast responses. If your business takes hours to reply, they move to a competitor. CARS24 reduced turnaround time by 80% across key workflows. Their AI agents handle initial questions instantly, schedule inspections, and send reminders. Your business can do the same with a custom AI agent that integrates with your existing systems.
Scaling Without Hiring More Staff
Hiring is expensive and slow. AI agents let you scale conversations without adding headcount. CARS24 handles over 1 million minutes of AI conversations monthly. That is the equivalent of dozens of full-time employees. For an SME, this means you can offer 24/7 support without a night shift team.
Spreading AI Across Departments
Codex, OpenAI’s coding tool, started in CARS24’s engineering team. Within weeks, it spread to finance, legal, investor relations, and operations. Employees built “chief of staff” agents that manage scheduling, coordination, and follow-ups across Slack, Gmail, and WhatsApp. This shows that AI is not just for tech teams. Any department can benefit.

Step-by-Step Guide to Replicate CARS24s Approach
- 1. Map your customer journey. CARS24 identified four stages for buyers and three for sellers. Do the same for your business. Write down every touchpoint from first contact to post-purchase. Include follow-ups and reminders.
- 2. Start with one high-volume conversation. Pick the conversation that eats up most of your team’s time. For CARS24, it was the initial buyer call. Build an AI agent that handles that single stage first. Measure resolution rate and response time before expanding.
- 3. Use voice and chat together. Some customers prefer voice calls. Others want WhatsApp or website chat. CARS24 built both. Your AI agent should work across channels. A custom AI automation can handle inbound calls, WhatsApp messages, and chatbot conversations from one system.
- 4. Build for re-engagement. CARS24’s AI agents automatically re-engage silent leads after ten days. Set up a similar workflow. Use your CRM to identify leads that have not responded. Have your AI agent send a friendly check-in message or make a follow-up call.
- 5. Deploy Codex or similar tools across teams. Codex helped CARS24’s finance team prepare investor reports and review purchase orders. Start with one non-engineering team. Give them a simple agent that automates repetitive tasks like scheduling, data entry, or report generation.
- 6. Measure and iterate. CARS24 tracks conversation minutes, resolution rates, and turnaround times. Set up dashboards for these metrics. Adjust your AI agent’s scripts and triggers based on real data. Treat it as a continuous improvement process.
Common Mistakes to Avoid When Scaling AI Conversations
Mistake 1: Building Without a Clear Journey Map
Many SMEs jump straight to building a chatbot without mapping the customer journey first. This leads to an agent that handles some questions but misses others. CARS24 built agents for each stage separately. Start with a pen-and-paper map of your buyer and seller journeys. Then build your AI agent around those stages. If you need help, consider AI strategy consulting to plan your approach.
Mistake 2: Ignoring Re-engagement Workflows
Most businesses treat a silent lead as a lost cause. CARS24 proved that 12% of those leads are recoverable. Build a re-engagement workflow into your AI agent. Set a trigger for leads that have been silent for a specific number of days. Have the agent send a personalised message or make a short follow-up call. This simple addition can recover significant revenue.
Mistake 3: Keeping AI in the Engineering Team Only
CARS24’s Codex tool spread to finance, legal, and operations because employees saw its value. If you restrict AI access to developers, you miss out on productivity gains across the business. Give your teams simple AI agents for scheduling, reporting, and coordination. Train them on how to use the tools. The results will surprise you.
Mistake 4: Not Tracking the Right Metrics
If you do not measure resolution rates, turnaround times, and conversation volumes, you cannot improve. CARS24 tracks these metrics monthly. Set up a simple dashboard that tracks your AI agent’s performance. Look at what is working and what is not. Adjust your scripts and triggers regularly.

Comparison of AI Conversation Tools for Indian SMEs
Not every SME needs to build from scratch like CARS24. Several tools offer ready-made AI conversation capabilities that you can customise for your business. The table below compares popular options based on features relevant to Indian SMEs.
| Tool | Best For | Key Features | Starting Price (per month) |
|---|---|---|---|
| OpenAI API | Custom voice and chat agents | Full control, multiple models, language support for Hindi and other Indian languages | Pay per token, around Rs 5,000 for small volumes |
| ChatGPT Enterprise | Internal team productivity | Custom GPTs, data security, integrations with Slack and Gmail, 85-90% daily active usage at CARS24 | Custom pricing, typically Rs 15,000 per user per year |
| Zendesk AI | Customer support automation | Pre-built workflows, ticketing system, multilingual support, analytics dashboard | Rs 10,000 |
| Intercom Fin | Website chatbots | Conversational AI, lead qualification, appointment booking, WhatsApp integration | Rs 12,000 |
| Freshchat | SMEs on a budget | AI-powered responses, chatbot builder, multi-channel support, Indian data centre option | Rs 3,000 |
| NaviGo Tech Solutions AI Agent | Custom AI agents for SMEs | Voice and chat agents, WhatsApp integration, CRM sync, re-engagement workflows, free consultation | Custom pricing, starting at Rs 15,000 |
Choosing the right tool depends on your budget, technical capability, and customer volume. For Indian SMEs with limited technical resources, working with a partner like NaviGo Tech Solutions can help you build a custom AI agent without an in-house engineering team. The key is to start small, measure results, and scale what works.
Not sure which tool fits your business?
Our team at NaviGo Tech Solutions will set it up for you — free 30-minute strategy call.
Frequently Asked Questions
How did CARS24 recover 12% of lost leads using AI?
What is the cost of building an AI conversation agent for a small business in India?
Can small businesses use ChatGPT Enterprise like CARS24 did?
What Indian languages can AI conversation agents handle?
Ready to build your own AI conversation agent and recover lost leads like CARS24? Get a free consultation tailored for your Indian SME business.



