The only real difference: who pays for the click
Both channels chase the same person typing the same query into the same box. PPC buys a slot in an auction that reruns from scratch every single time someone searches. SEO earns a slot in an index that Google rebuilds on its own schedule, hands to you for free, and takes away on its own schedule too.
That one difference explains everything else about the two channels. Auctions clear instantly, so PPC starts on day one and stops the day your card declines. The index compounds slowly, so SEO does almost nothing for a quarter and then keeps producing after the invoice stops. Neither shape is better. They're just different shapes, and you fund them for different reasons.
| PPC | SEO | |
|---|---|---|
| First lead lands | Day 1–3 | Week 8–16, later on competitive terms |
| Cost behaviour | Variable — you pay per click, every click, forever | Fixed monthly — cost per lead falls as volume builds |
| When you stop paying | Traffic hits zero inside 24 hours | Traffic decays over 6–18 months |
| Who controls the outcome | You. Bid, budget, ad copy, landing page | Google. You influence it; you don't control it |
| Strongest at | Testing demand, seasonal pushes, bottom-funnel intent | Compounding volume, research-stage queries, defensible position |
| Weakest at | Scaling past your profitable CPC ceiling | Anything you need working this month |
| Fails quietly when | Competitors bid up the auction and CPL creeps | Nobody checks whether pages got indexed |
Cost per lead: the arithmetic nobody puts in the deck
PPC cost per lead is two numbers multiplied together, and you can work it out in ten seconds. Take your average cost per click and divide it by your landing page conversion rate. A ₹120 click on a page that converts 3% of visitors costs you ₹4,000 per lead. If that page converts 1.5%, the same click costs ₹8,000 per lead — the landing page is worth as much as the bid.
Indian CPCs vary enormously by category, and anyone quoting you a single national average is guessing. These are the bands you'll typically see in Google's own Keyword Planner. Pull your own before you budget against ours — Keyword Planner is free and it takes an afternoon.
- SEO cost per lead is a moving target. At a ₹75,000/mo retainer you need 25 organic leads a month to match a ₹3,000 CPL. In month two you'll have roughly none, so your cost per lead is technically infinite — which is why judging SEO on a monthly CPL before month six tells you nothing.
- The number that matters is cumulative. Add up everything you've spent and divide by every lead you've received since day one. On PPC that line is flat forever. On SEO it starts absurd and falls every month.
- PPC has a ceiling; SEO has a floor. Once you've captured the profitable clicks in an auction, spending more just buys worse clicks. SEO's constraint is different — it's how fast you can publish and earn links, not how much you can bid.
| Category | Typical CPC band | Cost per lead at 3% |
|---|---|---|
| Local services — salons, gyms, clinics | ₹15–₹80 | ₹500–₹2,700 |
| Home services, packers and movers | ₹30–₹150 | ₹1,000–₹5,000 |
| Real estate | ₹40–₹250 | ₹1,300–₹8,300 |
| Education and edtech | ₹60–₹400 | ₹2,000–₹13,300 |
| B2B SaaS | ₹120–₹700 | ₹4,000–₹23,300 |
| Legal, insurance, lending | ₹150–₹900 | ₹5,000–₹30,000 |
Payback: 90 days against nine months
This is the part that should decide your answer, and it rarely gets discussed because it's about your bank balance rather than your marketing.
Money you put into PPC in January produces leads in January. Money you put into SEO in January produces leads somewhere around September. Both can be excellent investments. Only one of them survives a cash crunch in March.
- Days 1–30. PPC: campaigns live, leads flowing, CPL wildly unstable while the algorithm learns. SEO: technical audit, baseline freeze, keyword mapping. Zero leads, by design.
- Months 2–3. PPC: CPL settles, you kill the losing keywords, unit economics become readable. SEO: fixes shipping, first content live, impressions starting to move in Search Console.
- Months 4–6. PPC: flat. You've found your profitable ceiling and you're paying it. SEO: rankings arriving on the long tail, first leads landing, still well behind PPC on volume.
- Months 7–12. PPC: still flat, possibly worse if competitors entered your auction. SEO: compounding. This is where the two lines usually cross on cumulative cost per lead.
- Month 13 onwards. PPC costs exactly what it did on day one. SEO costs the same retainer but produces several times the leads it did in month six. That gap is the entire argument for organic.
The ₹40,000 / ₹75,000 / ₹2 lakh funding rule
Here's the verdict, stated as a rule rather than a hedge. The bands are about total monthly marketing budget, not just the search line.
- Our SEO starts at ₹75,000/mo, with smaller sites from ₹40,000/mo. Performance marketing runs ₹40,000 / ₹75,000 / ₹1,50,000 per month by tier, with ad spend billed separately at zero media markup.
- If you want both under one roof, the Own Everything Stack — SEO, organic social and performance — is ₹1,75,000/mo. All prices ex-GST, month-to-month after the first quarter. Full detail on our pricing page.
| Monthly budget | Fund this | Why | What breaks if you don't |
|---|---|---|---|
| Under ₹40,000 | PPC only | SEO at this level buys two articles and a report. Our own floor is ₹40,000/mo and that assumes a small, simple site. | You pay twelve months of retainer for a blog nobody reads. |
| ₹40,000–₹75,000 | One, not both | PPC if you need revenue this quarter. SEO if you have 12 months of runway and a niche you can genuinely own. | Splitting this budget starves both and you cancel both. |
| ₹75,000–₹1,50,000 | SEO, plus a branded PPC floor | SEO becomes the engine. Keep ₹8,000–₹15,000/mo on your own brand terms so competitors can't buy the click you already earned. | A competitor bids on your name and converts your warmest traffic. |
| ₹2,00,000+ | Both, properly resourced | At this level PPC funds the quarter and SEO funds the year. The paid search terms report also feeds the SEO plan. | You run two half-programmes and blame the channel. |
Spend three months on PPC to buy your SEO keyword list
This is the argument for running PPC first that nobody makes loudly enough. Keyword tools tell you what people search. The Google Ads search terms report tells you what people search and then buy from. Those are not the same list, and the gap between them is where most SEO budgets die.
Run a tightly-scoped search campaign for 90 days. Not to win — to learn. At the end you'll have a list of exact queries that produced enquiries, the CPC the market puts on each one, and a landing page conversion rate you can trust. Now build your SEO plan against that list instead of against a volume column in a tool.
- A high CPC is a commercial signal. If competitors are paying ₹600 a click, the query converts. That's a better ranking target than a 10,000-volume keyword nobody bids on.
- Conversion data beats volume data. A 90-search-a-month query that converted four times in a quarter is worth more than a 5,000-volume query that converted nothing.
- Your ad copy is a headline test. The variant with the best click-through rate is usually the right title tag too.
- The catch: paid intent skews bottom-funnel. SEO also needs the research-stage queries that would never justify a bid. Use PPC data to pick your money pages, not your whole content plan.
What your organic baseline really looks like once the ads stop
Here's an uncomfortable one. If you've been running ads for a year and you now measure your organic performance, that measurement is contaminated. Ads create brand awareness; brand awareness creates people searching your company name; those searches land in organic and get counted as organic wins. Turn the ads off and some of your organic traffic leaves with them.
This matters commercially, not just academically, because that inflated number is what an SEO agency will be measured against — or worse, what they'll quietly take credit for. Before you sign anything, pause your brand campaigns for two weeks and watch what happens to organic brand impressions in Search Console. Whatever falls was never yours.
We freeze a client's trailing-90-day qualified organic leads on day one and commit to beating that number within 90 days. Miss it and we keep working free until we beat it. That commitment only means something if the frozen number is honest, which is why we run the pause test before we quote, not after. More on how we set a baseline and how the guarantee works.