Payment Gateway Integration Guide for Indian Businesses
What you need before applying for a payment gateway, how integration works, and the details that prevent payment problems after launch.
Accepting online payments is essential for online stores, bookings and many service businesses. This guide explains how payment gateway integration works for Indian businesses and what to prepare.
What a payment gateway does
A payment gateway securely collects payment details from your customer, processes the payment through banks and networks, and settles the money into your bank account after deducting its fees. Your website never needs to store card details.
Choosing a gateway
Popular Indian gateways include Razorpay, PayU, Cashfree and CCAvenue. Compare them on:
- Payment methods: UPI, cards, net banking, wallets, EMI, international cards
- Fees and settlement timelines
- Platform support (Shopify, WooCommerce, custom)
- Features such as payment links, subscriptions and refunds via dashboard
Before you apply
Gateways verify your business (KYC) and review your website. Typically you need business and bank details, PAN and other documents depending on your business type. Your website usually needs:
- Clear product or service descriptions and prices
- Contact details
- Privacy policy, terms and conditions
- Refund/cancellation and, if relevant, shipping policies
How integration works
- Create the gateway account in your business's name and get test API keys.
- Integrate the checkout using the gateway's plugin (for platforms) or SDK/API (for custom sites).
- Verify each payment on the server using the gateway's signature or API, not only on the browser side.
- Set up webhooks so orders update correctly even if the customer closes the page after paying.
- Test successful, failed and cancelled payments in test mode.
- Switch to live keys after approval and make a small real transaction.
Security essentials
- Keep secret API keys on the server, never in public JavaScript.
- Use HTTPS on the entire site.
- Do not store card details yourself; let the gateway handle them.
- Restrict dashboard access to the people who need it.
Common problems
- Applications delayed by missing policy pages or unclear products.
- Orders stuck as "pending" because webhooks were not configured.
- Test keys accidentally left in the live site.
With the right preparation, payment integration is straightforward and reliable.
Frequently asked questions
Online payment lagana hai, kya documents chahiye?
Aam taur par business details, PAN, bank account aur business type ke hisaab se aur documents. Website par products ya services, prices, contact details aur refund, privacy aur terms pages hone chahiye.
How long does payment gateway approval take?
It depends on the gateway and how complete your documents and website are. Having policy pages and clear product information ready usually avoids delays.
Need help with this for your business?
Talk to WebAura Studio about your website, store or digital growth requirement.