Walk into a sales floor in Mumbai, Bangalore, or Hyderabad and you'll see the same setup almost everywhere. Young team, headsets on, calling buyers in English. The buyers themselves are in Patna, Coimbatore, Bhubaneswar, Indore. Most of them don't really want to be talked to in English.
This is the silent leak in Indian B2C sales. Companies spend lakhs every month on Meta and Google ads to generate leads, then lose those leads at the first touch because the language doesn't match. Nobody talks about it because there hasn't been an obvious fix.
The numbers
Across 2.5 million outbound calls we placed for real estate, education, and BFSI customers in 2025, the pattern was consistent and frankly a little shocking.
Calls in English to non-Tier-1 cities connected 22 percent of the time, and 8 percent of those connects produced a qualified lead. Calls placed in the buyer's preferred Indian language — same script, same source, just translated — connected 71 percent of the time and produced qualified leads at 27 percent.
Three times the connect rate. Three times the qualification rate. Same lead. Different language.
Why language matters more than people think
It isn't really about intelligibility. Most Indian buyers in Tier 2 and 3 cities understand English well enough to follow a sales call. The reason they convert better in their own language is trust.
When a salesperson speaks to a buyer in Telugu, the buyer assumes — correctly — that they share context. Local market conditions, local concerns, local hesitations. The call becomes a conversation instead of a sales pitch.
In English, the same call is implicitly hierarchical. "They're educated, I'm not." Or "they're from out of state, they don't get my situation." Even when neither is actually true, the language quietly frames the relationship that way.
Why companies haven't fixed it
Hiring a 22-language sales team isn't realistic for most businesses. A Hyderabad real estate developer needs Telugu, Hindi, Tamil, Kannada, and English as a bare minimum. Staffing that across day and evening shifts means more than 30 salespeople, half of whom are idle at any given moment.
So companies pick a default — usually English — and live with the conversion drop. It's a known cost. Most teams have just stopped trying to fix it.
What changes with voice AI
A voice agent speaks all 22 languages, instantly, on every call. The first ten seconds are language detection. The buyer says "hello?" in Telugu and the agent continues in Telugu. The buyer says "hi" in English and the agent continues in English. The buyer code-mixes — "Sir, EMI kitna hoga monthly mein?" — and the agent handles it without skipping a beat.
The cost per call doesn't change with language. The model that speaks Hindi also speaks Odia. The agent that handles 100 calls a day in Bangalore handles 100 calls a day in Bhubaneswar too.
What it looks like in the field
A consumer finance customer of ours running in six states switched from a Mumbai-based English call centre to Convey. Time to first contact went from three and a half hours to 22 seconds. Cost per qualified application dropped from ₹920 to ₹310. Disbursement rate from the qualified pool went up 38 percent.
The script didn't change. The product didn't change. What changed was that every applicant in Patna got called in Bhojpuri, every applicant in Pune in Marathi, every applicant in Coimbatore in Tamil. That was it.
A warning, though
Bad TTS is worse than English. A robotic Telugu voice gets hung up on faster than a polite English one. If you're going vernacular, the voice quality has to be good enough that the buyer doesn't realise it's AI for the first 20 seconds. Anything less and you've lost the trust faster than English would have.
This is the main reason we built IRA in-house. Off-the-shelf TTS for non-Hindi languages just wasn't good enough, and the gap between "good enough" and "not good enough" turned out to be the gap between a campaign that worked and one that quietly died.
Where to start
If you're running paid ads in India and your sales team is English-only, the highest-ROI experiment you can run this quarter is splitting your lead base by city tier and routing the non-Tier-1 leads to a vernacular voice agent for two weeks. The data will tell you very quickly whether the lift is real.
We haven't seen a case yet where it wasn't.