Most national campaigns in India are planned in two languages: Hindi for reach, English for the metros. It feels like full coverage. It is not. By the last census, Hindi was the mother tongue of roughly 44% of the country — and the other half buys in Bengali, Marathi, Telugu, Tamil, Gujarati, Kannada, Malayalam and more. This guide is the general playbook behind our regional work: the language map, what each language costs, and the rules that make a vernacular COD funnel profitable. The market-by-market specifics live in our guides to Tamil Nadu, the Telugu states and Kerala.
One country, many buying languages
The eight languages we run, with each one's share of the population by mother tongue (Census 2011):
| Language | Share of population | Core region |
|---|---|---|
| Hindi | ~44% | North and central India |
| Bengali | ~8% | West Bengal |
| Marathi | ~7% | Maharashtra |
| Telugu | ~7% | Andhra Pradesh, Telangana |
| Tamil | ~6% | Tamil Nadu |
| Gujarati | ~5% | Gujarat |
| Kannada | ~4% | Karnataka |
| Malayalam | ~3% | Kerala |
Two things are easy to miss in that table. First, the smaller shares are not small markets: 7% of India is a country the size of Vietnam. Second, Hindi is understood far beyond its native speakers — but understood is not the same as trusted at the moment of paying. A second language gets the click. The first language gets the order confirmed.
Why language moves COD economics
In a prepaid market, language mostly affects click-through. In India's cash-on-delivery economy it affects three later, more expensive moments:
- The order form. A buyer who half-understands the price, the pack size or the terms still submits — and becomes a lead you pay for.
- The confirmation call. An operator speaking the buyer's second language gets hesitant yeses. Hesitant yeses are the orders that come back.
- The doorstep. A parcel the buyer didn't fully understand ordering is the parcel refused at the door.
The pattern repeats in every vernacular market we run: an ad in the local language resolving to an English or Hindi landing page keeps its click-through rate and loses its approval rate. Lost approval and refused parcels are exactly how RTO erodes COD margins. Language is not a creative nicety here; it is a line in the unit economics.
What each language costs
Language is the biggest single multiplier on our India rate card. Every rate starts from a Hindi reference base and scales by language tier:
| Language tier | Multiplier | Why |
|---|---|---|
| Hindi | ×1.00 | Widest inventory — the reference base |
| Marathi · Gujarati · Bengali | ×1.20 | Large western and eastern markets, first step off Hindi |
| Kannada | ×1.38 | Smaller inventory, strong urban core in Bengaluru |
| Telugu · Tamil | ×1.59 | Costlier auction, better COD confirmation |
| Malayalam | ×1.82 | Narrowest inventory, most demanding and literate audience |
The southern premium is not a penalty. South Indian audiences sit in a costlier auction but convert better on COD — higher confirmation, lower return-to-origin. A Tamil lead at $1.05 against a Hindi lead at $0.66 (both 35+, ₹699 landing, 1,000+ a day) is only the more expensive choice if it confirms and delivers at the same rate — and usually it does not. Put your own approval and delivery rates into the lead pricing calculator and compare the cost per delivered order, not the cost per lead.
The operating rules
These are the rules we run every regional funnel on. The market guides add local specifics; the foundation is the same everywhere.
One language, end to end. Ad, pre-lander, landing page, order form, confirmation call — all in the same language. The most common failure we audit is a strong regional ad handing off to an English page. Every handoff to a second language is a place where comprehension, and then approval, leaks.
Native creative, not translation. Machine-translated headlines read as machine-translated, and audiences notice creatives recycled from Hindi campaigns with swapped subtitles. Claims need re-writing for the market, and translated claims need re-checking for compliance, not just re-wording — see advertising rules for supplements in India.
Script and register. Use the native script for headlines and anything that makes a promise. Transliterated copy — Hinglish, Tanglish and their cousins — is native to casual social media and can work in comment-style creatives, but product claims belong in the script. Formal register reads as trustworthy in claims; conversational register carries social copy. Mixing them carelessly marks you as an outsider.
Target by language, not only by map. Language targeting reaches audiences that geo targeting misses: Tamil and Telugu speakers working in Bengaluru or Mumbai, and diaspora markets such as the Gulf Malayali community or Tamil audiences in Singapore and Malaysia. Same creative pipeline, different geography.
Verify in the buyer's language. Our lead verification layer matches native speakers to each language campaign — and, in markets like the Telugu states, to the buyer's region where possible. A confirmation call in natural, local speech reconfirms price and terms, filters mistaken orders before they ship, and protects the two numbers that decide COD profitability: approval rate and RTO.
Read results per language. Blended national numbers hide the story. Run each language as its own ad set and read approval and delivery per language — a language that looks expensive per lead often wins per delivered order.
Where to start
If you are Hindi-only today, add languages in the order your product and economics suggest rather than by population:
- For volume: Telugu — the largest single-language audience in South India, two states on one creative pipeline.
- For depth and tier-2 reach: Tamil — a developed state market with strong cities well beyond Chennai.
- For ayurveda and premium tickets: Malayalam — India's most literate audience, ayurveda's home ground, and a Gulf diaspora reachable in the same language.
- For the cheapest step off Hindi: Marathi, Gujarati or Bengali at ×1.20 — large markets where a native-language funnel is still a differentiator.
Whichever you add first, launch it as a separate segment with its own readout. Several languages can run in parallel: each is priced on its own multipliers, and your total daily volume across all of them sets the volume rate.
Market guides
- Advertising in Tamil Nadu: the Tamil-first market — why Hindi fails there, and how Tamil funnels win one of India's richest state markets.
- Advertising to Telugu audiences: one campaign, two states — dialect zones, Hyderabad, and the South's biggest single-language audience.
- Advertising in Kerala: reaching Malayalam audiences — the most demanding buyer in India and the Gulf multiplier.
FAQ
Is Hindi enough to cover India? No. Hindi is the mother tongue of roughly 44% of the population. It is widely understood beyond that, but a buyer reading in a second language confirms less often and refuses more parcels. For mass-market COD offers outside the Hindi belt, the local language wins on the numbers that matter.
Isn't English a safe default for the rest? For metro professionals, English performs adequately. For mass-market COD offers, it produces clicks that don't survive the confirmation call and the doorstep. The difference shows up in approval rate and RTO rather than in click-through.
Do regional languages cost more per lead? Yes — from ×1.20 for Marathi, Gujarati and Bengali up to ×1.82 for Malayalam on our rate card. Southern audiences sit in a costlier auction but confirm better on COD, so the cost per delivered order is often competitive or lower. The pricing calculator shows both.
Can we translate our Hindi creatives? Translate as a starting point, never as the finish. Headlines and claims need native re-writing, visual codes need local adaptation, and every translated claim needs a fresh compliance check.
How do you verify leads in regional languages? With native-speaking verification agents matched to each language campaign. A confirmation call in the buyer's own language reconfirms price and terms, filters mistaken orders, and protects approval rate and RTO.
India buys in its own languages. Selas builds regional-language funnels end to end — creative, landing pages and native-language verification — as part of lead generation across India, delivering 10,000+ verified leads daily. Start a brief →
Sources: Census of India 2011 language data; Selas India CPE rate card (effective 2026).