Prime Web Services
Payment Gateway Integration Services in Kolkata
We connect, secure and test online payments on your website, including UPI, cards, net banking and cash on delivery, for Shopify, WooCommerce and custom stores. Payment gateway integration is included in our e-commerce packages from ₹60,000.
Accept online payments the way Indian shoppers pay
A store that cannot take payments smoothly loses sales at the last step. Prime Web Services integrates payment gateways for businesses across Kolkata, from our New Town office.
We set up the gateway, connect it to your orders and test every outcome, so money reaches your bank and your team sees the right order status. This is part of our ecommerce website development in Kolkata service.
What you get
- Gateway chosen to fit your fees and platform
- UPI, cards, net banking, wallets and COD
- Server-side confirmation, not just redirects
- Refunds, failed payments and retries handled
- Tested on real devices before launch
Payment methods we set up
UPI
The most used method in India. We set up UPI collect and intent flows so mobile shoppers pay in a few taps.
Debit and credit cards
Secure card payments through your gateway's hosted checkout, so card data never touches your server.
Net banking and wallets
Bank transfers and popular wallets for shoppers who prefer them.
Cash on delivery
COD as an option with order rules, so you can limit it by pincode or order value.
Refunds and failed payments
Clear flows for refunds, failed payments and retries, with orders updated automatically.
GST receipts
Invoices and receipts that carry the right tax details for every paid order.
Our payment gateway integration process
Five steps from choosing a gateway to going live.
1. Pick the gateway
We help you choose based on fees, payment methods, settlement time and fit with your platform.
2. Onboarding and KYC
We guide you through the business and bank documents the gateway needs to approve your account.
3. Integration
We connect the gateway to Shopify, WooCommerce or your custom store and map payments to orders.
4. Webhooks and security
We add server-side confirmation so an order is marked paid only when the gateway confirms it.
5. Testing
We test success, failure, pending and refund cases on real devices before going live.
How to choose a payment gateway
Compare the gateway on these points before you sign up. Check current rates on the gateway's own website, since fees change.
| What to compare | Why it matters | What to ask |
|---|---|---|
| Transaction fees | Fees come out of every sale and differ by method | Rate per method, plus any setup or yearly charges |
| Settlement time | Decides how soon money reaches your bank | How many days, and what delays apply |
| Payment methods | Missing methods lose sales | Are UPI, cards, net banking, wallets and COD supported? |
| Platform support | Ready plugins cut build time and risk | Is there an official plugin for Shopify or WooCommerce? |
| Onboarding | Slow approval delays launch | Which documents are needed, and how long does approval take? |
| Support | Payment problems need fast answers | Is there phone or priority support for businesses? |
We recommend a gateway after reviewing your products and platform. For total store costs, read our ecommerce website cost in Kolkata guide.
Documents gateways usually ask for
Approval requirements vary by gateway, but most ask for the items below. Having them ready speeds up launch.
- Business PAN and proof of registration
- GST details, if registered
- Bank account details for settlements
- A live website with privacy, refund and terms pages
- Identity proof of the owner or directors
How we test your payments
We never launch without testing the full range of outcomes.
- Successful payment by UPI, card and net banking
- Failed and cancelled payments, with a clear retry
- Pending payments that confirm later through a webhook
- Full and partial refunds
- Cash on delivery orders and their rules
- Mobile checkout on Android and iPhone
- Correct GST invoice for each paid order
Payment problems we fix
Already have a gateway that is not working well? These are the issues we see most.
- Customers are charged but the order shows unpaid
- Payments fail more often on mobile
- The checkout is slow or confusing
- Duplicate orders or double charges
- Refunds are handled by hand
- The gateway plugin is outdated or conflicts with the theme
Security and trust
We use the gateway's hosted checkout where possible, so card details are handled by the gateway and not stored on your site. Orders are marked paid only after the gateway confirms the payment, and your site runs over HTTPS.
Clear refund and privacy pages also build shopper trust and are required by most gateways.
Pricing
Payment gateway integration is included in our e-commerce packages, which start at ₹60,000. Gateway transaction fees are paid to the gateway and are separate from our build price.
See ecommerce website cost in Kolkata, compare website development packages in Kolkata or read about website development cost in Kolkata.
Drive traffic to your checkout
A working checkout is only useful with visitors. Pair it with our PPC agency in Kolkata service for ads that send buyers to your store, and keep it healthy with a website maintenance plan from ₹5,000 a month.
Payment gateway integration FAQs
What is payment gateway integration?
It connects your website to a payment provider so customers can pay online. The gateway handles the secure payment, and your site records the order as paid once the gateway confirms it.
Which payment gateways do you integrate?
We work with popular Indian gateways such as Razorpay, PayU and CCAvenue, and we help you choose the one that suits your fees, methods and platform.
How much does payment gateway integration cost?
Gateway integration is part of our e-commerce packages, which start at ₹60,000. See ecommerce website cost in Kolkata. Gateway transaction fees are paid to the gateway, not to us.
Can you add UPI to my website?
Yes. We set up UPI so customers can pay from any UPI app, with a smooth flow on mobile.
How long does gateway approval take?
It depends on the gateway and how quickly your documents are verified. We prepare your website and guide you through onboarding to avoid delays.
Is it safe to accept payments on my website?
Yes, when the gateway's hosted checkout is used and payments are confirmed server-side. Card details are handled by the gateway and not stored on your site.
Can you integrate payments on Shopify or WooCommerce?
Yes. We connect gateways to Shopify, WooCommerce and custom stores. See our ecommerce website development company in Kolkata page.
Do you fix existing payment problems?
Yes. We diagnose failed payments, unpaid orders and duplicate charges, then fix the integration and test it.
Related guides
Website development cost in Kolkata
Pricing for business and corporate websites.
Ecommerce website cost in Kolkata
Store pricing by platform, payments and inventory.
Website development packages in Kolkata
Compare our packages and what each includes.
Start accepting online payments
Tell us your platform and payment needs, and we will send a clear quote and timeline.
Prime Web ServicesSukhobristi Shapoorji Pallonji Housing Complex, Action Area III, Newtown, New Town, West Bengal 700135
info@primeweb.services