How to Sell on ONDC: Why There's No "ONDC Seller Signup" Page

Why "How Do I Sign Up for ONDC" Is the Wrong Question

If you've searched for how to start selling on ONDC, you've probably noticed there's no signup button to click — no ONDC Seller Central, no single onboarding form. That's not a gap in ONDC's design; it's the whole point. ONDC (Open Network for Digital Commerce) is a protocol that lets buyer-side and seller-side apps interoperate, not a marketplace that lists your products itself. Understanding that distinction is the first and most important step before you try to "register."

How ONDC Onboarding Actually Works

Instead of registering with ONDC directly, you register your catalogue with a Seller App — also called a Seller Network Participant (Seller NP) — an application that has built the technical integration to speak the ONDC protocol. Once you're onboarded with a Seller App, your catalogue becomes discoverable across every Buyer App on the network, not just the one you signed up through. A customer browsing a completely different, ONDC-integrated shopping app can find and order your product, even though you never directly interacted with that app.

This is the practical upside of the open-network model: one onboarding effort gives you distribution across multiple buyer-facing apps, rather than the one-marketplace-at-a-time model of Amazon, Flipkart, or Meesho.

Choosing a Seller App

There's no single "official" ONDC seller app — several platforms have built Seller NP integrations, each with its own fee structure, catalogue tools, and level of support:

• Paytm's ONDC seller storefront — integrated with Paytm's existing merchant tools if you already use Paytm for payments
• Mystore — a dedicated ONDC-first seller platform
• GoFrugal — retail/POS software with an ONDC integration layer, useful if you already run GoFrugal for inventory
• ONDC modules within existing platforms like Meesho and Snapdeal, for sellers who want to add ONDC as an additional channel from a marketplace they already use

Compare at least two or three before committing — fee structures, catalogue upload tools, and settlement timelines differ meaningfully between them, and switching later means re-onboarding your catalogue elsewhere.

GST: The Part That Doesn't Change

Whichever Seller App you choose, the underlying GST obligations are the same as any other e-commerce channel:

1. GST registration is mandatory regardless of turnover — the same Section 24 rule that applies to Amazon, Flipkart, and Meesho sellers applies here. Your Seller App will ask for your GSTIN as part of onboarding.
2. TCS liability sits with whichever app handles settlement. Because ONDC itself doesn't process payments, the Section 52 TCS deduction and GSTR-8 reporting responsibility falls to your Seller App or the transacting Buyer App — this can differ between apps, so ask directly rather than assuming it matches a traditional marketplace's process.
3. Your invoicing and return filing obligations are unchanged — GSTR-1, GSTR-3B, and TCS credit claims work the same way regardless of which channel generated the sale. If you're already filing for Amazon or Meesho, ONDC sales get folded into the same monthly cycle, not a separate one.

If you're not GST-registered yet, start with our GST registration guide — that has to happen before any Seller App onboarding, not after. Once you're live, run your invoice math through the GST Calculator the same way you would for any other channel — ONDC sales don't change the arithmetic, only which app is reporting the transaction.

What Onboarding Actually Involves, Step by Step

1. Get GST-registered if you aren't already — this is a prerequisite for every Seller App, not something you sort out mid-onboarding.
2. Compare 2–3 Seller Apps against your product category and existing tools (a Paytm merchant already using Paytm's ecosystem has a shorter path than starting fresh with Mystore, for instance).
3. Upload your catalogue through your chosen Seller App's onboarding flow — formats and required fields vary by app, so budget time for reformatting product data you already have from other marketplaces.
4. Confirm TCS and settlement handling with your Seller App directly, since this varies between apps in a way it doesn't on a single, unified marketplace.
5. Go live and monitor discovery across Buyer Apps — since your catalogue is now visible network-wide, track which Buyer Apps are actually driving orders before assuming the whole network is working equally well for you.

Is It Worth Adding as a Channel?

ONDC's appeal is lower platform lock-in and generally lower network fees than a traditional marketplace commission — but discovery volume through Buyer Apps still varies a lot by category and by which Seller App you've picked, and it remains a smaller channel than Amazon or Flipkart for most sellers today. It's a reasonable low-cost channel to test alongside your existing marketplace presence, not something to bet your whole business on switching to.

Use the Marketplace Profit Calculator to compare your existing Amazon/Flipkart/Meesho margins against whatever fee structure your chosen Seller App quotes, before deciding how much catalogue and inventory effort to commit to ONDC.

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More platform guides: How to Sell on Amazon · How to Sell on Flipkart · How to Sell on Meesho · GST Registration for Sellers