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Payment gateway integration in India, tested properly before real money moves.
Ragnar Studios connects your website, store or app to the payment gateway you choose, so orders are paid and recorded automatically. You open the gateway account and complete its KYC; we do the technical integration.
- You choose the gateway and own the account
- Test mode, webhooks, refunds and failed-payment handling
- Custom quote after we understand your requirements
- WhatsApp-firstTalk to us directly
- Custom quoteAfter your brief
- Fixed prices5-page site and Shopify plans
- 900+ websites and Shopify storesBuilt by the studio
Why payment gateway integration needs more than a pay button
Taking payments online sounds simple until the first real order. The customer pays, the money leaves their account, and then the browser closes before your site hears back. Good payment gateway integration in India handles that moment correctly, so every paid order is recorded, every failed attempt is explained, and you are not matching bank statements to orders by hand late at night. That is the real work behind a payment button.
A payment gateway is the service that securely collects the customer's payment details and talks to banks and UPI apps. Razorpay, PayU, Cashfree and PhonePe are examples of gateways you may choose from. The client picks the gateway, opens the account and completes its KYC and approval. Ragnar Studios does not decide approvals and cannot promise one. Once your account is ready, we connect it to your site or app.
The technical side covers far more than checkout. We start in test mode, create each order on your server, verify the payment response, listen for webhooks so the order status updates even if the customer closes the page, and build the refund and failed-payment paths. On WordPress, WooCommerce and Shopify we use the gateway's supported plugin or app where it fits. On custom apps we work with the gateway's API.
The cost of payment gateway integration depends on the platform, the number of gateways, one-time or recurring payments, invoice needs and testing time, so we quote after understanding your requirements. Gateway charges and settlement terms are agreed between you and the gateway, and we do not quote them. We have built 900+ websites and Shopify stores, and we bring that experience to your payment setup.
What payment gateway integration covers
Each item below is part of payment gateway integration in India as we plan it with you, scoped to your platform and gateway.
Checkout and payment methods
We add the gateway's checkout to your site or app so customers can pay using the methods enabled on your account, which may include UPI, cards, netbanking and wallets. Which methods appear depends on the gateway and its approval for your business. We keep the pay step clear on mobile and show the amount and order details before the customer pays.
Test mode first
Before a single real rupee moves, we connect to the gateway's test environment and run test orders through success, failure and cancelled-payment cases. You can try the whole journey on your own phone and approve it. Only after that do we switch to live keys, and we do a small live check with you to confirm everything works end to end.
Webhooks and order status
A webhook is a message the gateway sends to your server when a payment succeeds or fails. We set up a secure endpoint, verify each message and update the order status automatically, so an order is marked paid even if the customer closed the browser mid-payment. This prevents the common problem of money received while the order still shows pending.
Refunds flow
We build the refund path so a full or partial refund can be started from your admin screen or the gateway dashboard, and the order status changes to match. We explain how refunds reach customers, noting that timelines are controlled by the gateway and the bank. Your refund policy page should state these terms, and we can help you word it clearly.
Failed-payment handling
Payments fail for many reasons: a wrong OTP, bank downtime, a UPI app that closed halfway. We show clear messages, let the customer retry without refilling the cart, and keep the order in a failed or pending state instead of losing it. Where your setup allows, we can also send a payment reminder by email or WhatsApp.
Invoices and records
After a successful payment we can send an order confirmation and an invoice carrying the order number, items, amount and payment reference. If you are GST registered, the exact invoice format depends on what your accountant needs, so we ask for those details first. Records are kept so you can reconcile orders with the gateway's settlement reports.
Who needs payment gateway integration in India
Payment gateway integration in India differs by platform, so we start by asking what you already run.
WooCommerce and WordPress stores
If your store runs on WooCommerce, we set up the gateway's supported plugin, map the order statuses, test the checkout and make sure webhooks reach your site. We also check that caching and security plugins are not blocking payment callbacks, a frequent hidden cause of orders stuck in pending after a successful payment.
Shopify stores
Shopify has its own checkout, and the gateways available to Indian merchants depend on Shopify's current options and your account. We help you review the choices, configure the supported gateway, set up payment methods and run test orders. We will tell you honestly where the platform limits what can be customised in checkout.
Service businesses and consultants
Coaches, agencies, repair services and clinics often need to collect an advance or a one-off fee. Depending on the gateway, this can be a payment page or a payment link shared on WhatsApp or email. We can connect it to a booking or enquiry form so each payment is tied to a customer and a service.
Custom web apps and portals
Customer portals, learning platforms and marketplaces need payments tied to user accounts, plans or wallets. We integrate the gateway's API into your app, store the payment references safely, and build the admin view your team needs to check payments, refunds and failed attempts without opening the gateway dashboard each time.
Mobile apps
For Android and iOS apps, gateways generally offer SDKs that open a payment screen inside the app, including UPI app selection. We integrate the SDK, confirm the result with your server rather than trusting the app alone, and test on real devices. App store review rules for digital goods can affect what is allowed, so we discuss that early.
Schools, societies and NGOs
Fee collection, event tickets and membership payments need clear receipts and a record per payer. Gateways may ask for extra documents from trusts and non-profits, and that approval sits with them. We handle the website side: payment forms, receipts and a simple report your accountant can use.
How we do payment gateway integration in India
Our payment gateway integration in India follows a clear order, keeping real money out until everything has been tested.
Requirements and platform check
We start by understanding what you sell, how customers pay today, which platform you use and whether you need one-time or recurring payments. We also note any gateway you have in mind. From this we confirm the approach, the pages or screens that will change, and what we need from you.
Your gateway account and KYC
You open the account with your chosen gateway and complete its KYC, using your business documents. This part is between you and the gateway, and approval is its decision. We tell you what usually helps, such as a working website with policy pages, and we can start building in test mode while approval is pending.
Build in test mode
Using the gateway's test keys, we connect checkout, create orders on the server and verify payment responses. Nothing here moves real money. We keep the keys in secure configuration, not in public page code, and share a test link so you can follow the customer journey as it takes shape.
Webhooks and edge cases
We add webhook handling and then test the awkward cases: a payment that succeeds after the customer leaves, a duplicate message from the gateway, an abandoned UPI request, a partial refund. Handling these properly is what separates a reliable setup from one that needs weekly manual corrections.
Go-live check
Once your live keys are available, we switch them in, place a small real payment together with you, confirm that the order, email and invoice are created, and then refund it if you wish. We also check your policy pages mention payments and refunds, since the gateway may review those.
Handover and notes
You receive a short note explaining where keys are stored, how to check a payment in the gateway dashboard, how to start a refund and what to do if an order is stuck. We answer questions about the delivered work, and anything new is quoted separately so scope stays clear.
How we take your payment integration brief
This is exactly how an enquiry becomes a project, step by step.
Tell us your setup
Share your business, platform and the gateway you prefer, or ask for help comparing a few options.
We confirm scope and quote
We check payment type, pages or screens involved and any invoice needs, then send a custom quote.
Build and test
You complete the gateway KYC while we integrate in test mode and run success, failure and refund cases.
Go live and handover
We switch to live keys, place a small real payment with you and share a short handover note.
Have these ready for a faster quote
- Your name and WhatsApp number
- Business name
- Platform
- Gateway preference
- One-time or recurring payments?
- Website URL
Payment gateway integration in India: cost and what is separate
There is no fixed price list for payment gateway integration in India, because the work varies widely. Here is what shapes the quote.
Custom quote after requirements
We do not publish a standard price for payment gateway integration, because a plugin setup on WooCommerce is very different from a custom app with subscriptions. After you share your platform, gateway choice and payment type, we send a quote that lists what is covered, so you can compare it with other offers on equal terms.
Platform and complexity
Cost follows effort. A supported plugin on WordPress or Shopify usually involves configuration and testing. A custom website or app needs server code, secure storage of payment references, admin screens and more test cases. The number of products, user roles and order types adds to this.
One-time or recurring payments
One-time payments are the simpler case. Recurring payments, such as subscriptions, memberships or instalments, add plan setup, renewal handling, failed-renewal rules and customer communication. Not every gateway or payment method supports recurring billing in the same way, so we check your gateway's current options before quoting.
Gateway charges and approval
The gateway's own fees, settlement schedule and approval are set by the gateway and agreed directly between you and them. They are separate from our fees, and we do not state or guess them. Please read the gateway's current terms before choosing, and compare more than one provider if cost matters.
Invoices, refunds and admin screens
A basic setup records the payment and updates the order. Extras such as GST-style invoice layouts, partial refunds from your own admin, payment reports, WhatsApp reminders or multi-gateway fallback add design and testing time. We list these as options so you can choose what is worth building now.
Timeline
We do not promise a fixed number of days. Timing depends on how fast your gateway approves the account, how quickly we get content and feedback, and how many cases need testing. We can often build and test while approval is pending, and we give a realistic schedule once requirements are clear.
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Guides and checklists that go with this service.
What is payment gateway integration in India?
It is the technical work of connecting your website or app to a payment gateway so customers can pay online and your system records the result. It covers checkout, order creation, payment verification, webhooks, refunds and error handling. The gateway account and KYC are handled by you, while we do the integration.
Which payment gateway should I choose?
Razorpay, PayU, Cashfree and PhonePe are examples, and the right choice depends on your business type, platform, payment methods needed and the gateway's current terms and approval. Compare more than one on charges, settlement time, support and plugin availability. We can explain technical differences, but we do not choose for you or recommend one as best.
Who opens the gateway account and does the KYC?
You do. The account is in your business name and the KYC uses your documents, so approval is between you and the gateway. We cannot promise approval. What we can do is advise on what usually helps, such as a clear website with policy pages, and build in test mode while you wait.
Can you integrate payments on WooCommerce or Shopify?
Yes. For WooCommerce we set up the gateway's supported plugin and test order statuses and webhooks. For Shopify we help configure the gateway options available to your account and test orders. Each platform has limits on checkout customisation, and we tell you honestly where those limits apply before work begins.
Do you set up UPI and payment links?
Where your gateway supports them, yes. UPI can appear as a checkout option, and some gateways offer payment links that you can share on WhatsApp or email for advances and one-off fees. Availability depends on the gateway and your account, so we confirm what is enabled before planning the flow.
How do you handle refunds and failed payments?
We build a refund path so you can start a full or partial refund and see the order status change. For failures, we show clear messages, allow a retry and keep the order recorded instead of losing it. Refund timelines depend on the gateway and bank, which we explain in the handover.
How much does payment gateway integration cost?
There is no fixed price. It is a custom quote after we understand your platform, gateway, payment type, invoice needs and testing scope. The gateway's own fees and settlement terms are separate and set by the gateway. Market rates vary widely, so compare what each quote includes, not just the amount.
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