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Custom E-Commerce Development · India

Custom E-Commerce Development in India

India businesses tell us what they sell and how they want to sell it; our engineers turn that into a custom custom e-commerce platform, an admin system and a mobile app shaped around their operations. Checkout with UPI (Google Pay, PhonePe, Paytm) and RuPay, Visa and Mastercard cards, delivery through Delhivery or your own team, and GST-ready invoicing.

  • Web platform + Android/iOS app
  • UPI (Google Pay, PhonePe, Paytm) and RuPay, Visa and Mastercard cards
  • Delivery via Delhivery
  • Demo within 24 hours
Cloud servers hosting a custom e-commerce platform — India

Quick answer

Who builds a custom e-commerce platform in India?

NNT Mart by N&T Software builds custom custom e-commerce platforms and mobile apps for businesses in India, designed to each client's requirements. Platforms support UPI (Google Pay, PhonePe, Paytm), RuPay, Visa and Mastercard cards and net banking, ship through Delhivery and Blue Dart, follow the Digital Personal Data Protection Act 2023 and the DPDP Rules 2025, and come with a free demo within 24 hours of the requirements meeting.

Key takeaways

  • If you run a business in India and want to sell online, we build an e-commerce platform and mobile application to your exact requirements, from the first product page to the last delivery update.
  • Checkout ready for UPI (Google Pay, PhonePe, Paytm), RuPay, Visa and Mastercard cards and net banking, with delivery through Delhivery and Blue Dart or your own team.
  • GST-ready invoicing and controls designed around the Digital Personal Data Protection Act 2023 and the DPDP Rules 2025.
  • Free demo within 24 hours of the requirements meeting; you own 100% of the source code after final payment.

Why a custom e-commerce platform makes sense for India

India is a market of about 1.33 billion people where custom e-commerce platforms are growing fast, with New Delhi as its capital.

India has more than 6 crore (60 million) MSMEs registered on the Udyam portal (Ministry of MSME). India has the world's largest real-time payments system in UPI and one of the fastest-growing online shopper bases, increasingly from tier-2 and tier-3 cities. Businesses that own their store — with UPI, COD, regional languages and WhatsApp updates — build loyal customers instead of renting them from marketplaces.

That is why more companies in India are moving from phone, WhatsApp and spreadsheet orders to a proper custom e-commerce platform — one place where products, prices, payments, orders and customers are managed together.

Local details we build into every India project

A store that works in India respects local habits as well as local law. These are the details we configure first.

Currency and pricing

Everything a India shopper sees — price, tax, delivery fee, refund — is in INR, written the local way.

Language and content

We localise pages, emails and notifications into Hindi, English and and 20 other scheduled languages where your audience needs it.

Local trust signals

We add the payment logos, courier names and policy pages shoppers in India recognise: UPI (Google Pay, PhonePe, Paytm) and RuPay, Visa and Mastercard cards and delivery through Delhivery.

Domain, phone and contact

Using .in where it suits you signals a local business to shoppers and search engines. Contact buttons are pre-set with +91, so a customer in India taps once to call or message.

Custom-built for how you sell in India

We do not hand India businesses a ready-made theme: we study how you sell, then build the online platform and Android/iOS app your customers and staff actually need.

Typical clients include multi-brand groups, businesses outgrowing SaaS platforms, companies migrating legacy stores and regulated sectors. Categories that sell especially well online in India — mobiles and electronics, fashion and ethnic wear, beauty and personal care and groceries and FMCG — get catalogue structures and filters designed for them.

Before any commitment you get a free requirements meeting, a demo built on your use case and a proposal priced to your budget.

Features of your custom e-commerce platform in India

Nothing here is fixed: modules are switched on, reshaped or built from scratch around how your India business sells.

Custom workflows

Product configurators, made-to-order flows, approvals, contracts and industry-specific rules. Shipping rules can use Delhivery, Blue Dart and Shiprocket as well as your own delivery staff in India.

Headless architecture

API-first commerce with a fast front end, so web, app, kiosk and marketplace channels share one backend. Multiple stock points in India are supported, so a India order ships from the nearest one.

Multi-entity operations

Multiple brands, companies, warehouses, currencies and tax registrations on one platform. Revenue reports by product, repeat buyer and delivery area of India guide stock and marketing decisions.

Deep integrations

ERP, PIM, WMS, CRM, POS, accounting and legacy systems with reliable, monitored data sync. Pages, search filters and wording are tuned to how people in India look for products, in Hindi and English if your audience needs it.

Migration

Move from older platforms with product, customer and order history, SEO-safe redirects and parallel runs. Bulk import and sync tools mean the India team never re-keys stock, prices or descriptions by hand.

Performance and security

Caching, CDN, load testing, security hardening, audit logs and cloud infrastructure as code. Checkout is configured for UPI (Google Pay, PhonePe, Paytm), RuPay, Visa and Mastercard cards and net banking.

Who we build for in India

Popular online categories in India include mobiles and electronics, fashion and ethnic wear, beauty and personal care, groceries and FMCG, home and kitchen and B2B industrial supplies. In India, we most often build custom e-commerce platforms for:

Enterprises with complex catalogues

Enterprises with complex catalogues get custom workflows plus multi-entity operations workflows tailored to their operations.

Multi-brand groups

We map how multi-brand groups sell today and digitise it end to end — from enquiry and order to payment, dispatch and repeat purchase.

Businesses outgrowing SaaS platforms

For businesses outgrowing SaaS platforms, we usually start with deep integrations, then add WMS and 3PL systems once orders are flowing.

Companies migrating legacy stores

Catalogue, pricing and fulfilment rules designed for companies migrating legacy stores in India, connected to the systems you already use.

Regulated sectors

Regulated sectors get migration plus custom workflows workflows tailored to their operations.

High-traffic retailers

We map how high-traffic retailers sell today and digitise it end to end — from enquiry and order to payment, dispatch and repeat purchase.

Checkout and payment methods for India

Shoppers in India rarely abandon a cart over price alone — they leave when their usual method is missing. Here that means UPI (Google Pay, PhonePe, Paytm), RuPay, Visa and Mastercard cards and net banking, then cash on delivery, EMI and cardless EMI and wallets and UPI AutoPay for subscriptions.

Provider approval, settlement time and fees differ by business type, so we shortlist gateways with you, then wire up status updates, refunds and reconciliation in INR with GST invoices — card details stay with the provider.

  • UPI (Google Pay, PhonePe, Paytm)
  • EMI and cardless EMI
  • Net banking
  • Wallets and UPI AutoPay for subscriptions
  • Cash on delivery
  • RuPay, Visa and Mastercard cards

Delivery and fulfilment across India

Your custom e-commerce platform can book shipments and share tracking with Delhivery, Blue Dart, Shiprocket, DTDC, Xpressbees, Ecom Express and India Post, or route orders to your own riders and stores.

We set up shipping zones, cut-off times, free-shipping thresholds, cash-collection rules and returns so the promise on the product page matches what your team can deliver.

Marketplaces vs. your own custom e-commerce platform in India

Selling in India through Amazon.in, Flipkart and Meesho gets you reach quickly, yet the buyer belongs to the platform, not to you.

Your custom e-commerce platform becomes the hub: marketplaces and social shops become extra outlets fed from one catalogue, while repeat customers buy directly from you at better margins.

Compliance built into your custom e-commerce platform

Tax basics: India levies GST, rationalised in September 2025 into main slabs of 5% and 18% with a 40% rate for select goods; e-commerce operators collect TCS, and e-invoicing and e-way bills apply above set thresholds.

Two frameworks shape the build: the Digital Personal Data Protection Act 2023 and the DPDP Rules 2025, alongside the IT Act 2000, and the Consumer Protection (E-Commerce) Rules 2020, which require seller details, country of origin, grievance officers and clear return and refund policies, plus the Legal Metrology rules on product labelling.

Controls we implement include compliant invoices, consent capture, policy pages, restricted staff access and audit trails. Please confirm the final legal and tax position with a local adviser.

Add a mobile app for India customers

Phones carry most traffic in India. Because the platform is API-first, customer, staff and partner mobile apps can be added at any point without rebuilding the backend.

Apps are published under your own developer accounts and share the same backend as your custom e-commerce platform, so offers, stock and orders are always consistent between web and mobile.

Order alerts, offers and abandoned-cart reminders go out on India time (UTC+5:30), in Hindi and English if you want.

  • SAP, Oracle, Microsoft Dynamics and Odoo ERPs
  • WMS and 3PL systems
  • PIM and DAM
  • BI and data warehouses
  • Identity and SSO
  • POS and store systems
  • Cloud platforms (AWS, Azure, GCP)
  • Search engines (Elasticsearch, Algolia)

Integrations above are examples; we connect any system that offers a suitable API, database access or approved import and export process.

A phased launch plan for India

We launch the journeys that create value first, then add depth. A typical roadmap for a custom e-commerce platform in India:

PhaseWhat goes live
FoundationArchitecture, core commerce, priority integrations and migration. Configured for INR, UPI (Google Pay, PhonePe, Paytm) and Delhivery from the start.
DifferentiateCustom workflows, configurators and automation.
OptimisePerformance, new channels, apps and continuous enhancement. Reviewed against how India customers actually buy.

We track page load and API response times, uptime, order-sync accuracy, manual-work hours saved, release frequency and total cost of ownership on a live dashboard from day one, so India results are visible, not promised.

Working with our team from India

India runs on UTC+5:30, the same clock as our engineering team in India. With three 8-hour shifts we are available 24×7, so meetings, demos and urgent fixes happen in your working hours.

We work in English and can deliver storefront content in Hindi and English. NDAs are signed on request, and you get a named project lead plus direct access to the engineers building your custom e-commerce platform.

Our head office is in Chhapi, Gujarat, with an office in Hyderabad and representation in Nigeria, South Africa, Ethiopia and Zambia; clients in India are served remotely with on-site workshops when the project needs them.

India — local market for custom e-commerce platforms
India · Photo: Wikimedia Commons
Analytics dashboard monitoring a custom commerce platform — India

India — the market we build for

India — custom e-commerce platforms for local businesses
India · Photo: Wikimedia Commons
India — custom e-commerce platforms for local businesses
India · Photo: Wikimedia Commons
Engineer writing code for a custom e-commerce platform — India
Custom E-Commerce Development

Custom E-Commerce Development across India

We build custom e-commerce platforms for businesses in 558 cities across 36 states and union territories in India. Choose your city for local payment, delivery and compliance details.

Custom E-Commerce Development in Arunachal Pradesh

Capital: Itanagar. Economy: hydropower, horticulture (kiwi, oranges), tourism and handloom. Businesses registered in Arunachal Pradesh carry GST state code 12 in their GSTIN, and intra-state sales are billed as CGST + SGST while sales to other states are billed as IGST.

Custom E-Commerce Development in Manipur

Capital: Imphal. Economy: handloom, bamboo, horticulture, sports goods and border trade with Myanmar. Businesses registered in Manipur carry GST state code 14 in their GSTIN, and intra-state sales are billed as CGST + SGST while sales to other states are billed as IGST.

Custom E-Commerce Development in Meghalaya

Capital: Shillong. Economy: tourism, horticulture (turmeric, pineapple), minerals and handicrafts. Businesses registered in Meghalaya carry GST state code 17 in their GSTIN, and intra-state sales are billed as CGST + SGST while sales to other states are billed as IGST.

Custom E-Commerce Development in Mizoram

Capital: Aizawl. Economy: bamboo, horticulture, handloom and border trade. Businesses registered in Mizoram carry GST state code 15 in their GSTIN, and intra-state sales are billed as CGST + SGST while sales to other states are billed as IGST.

Custom E-Commerce Development in Nagaland

Capital: Kohima. Economy: horticulture, handloom, bamboo, tourism (Hornbill Festival) and services. Businesses registered in Nagaland carry GST state code 13 in their GSTIN, and intra-state sales are billed as CGST + SGST while sales to other states are billed as IGST.

Custom E-Commerce Development in Sikkim

Capital: Gangtok. Economy: organic farming (large cardamom), tourism, pharmaceuticals and hydropower. Businesses registered in Sikkim carry GST state code 11 in their GSTIN, and intra-state sales are billed as CGST + SGST while sales to other states are billed as IGST.

Custom E-Commerce Development in Tripura

Capital: Agartala. Economy: rubber, bamboo, tea, natural gas and handloom. Businesses registered in Tripura carry GST state code 16 in their GSTIN, and intra-state sales are billed as CGST + SGST while sales to other states are billed as IGST.

Custom E-Commerce Development in Andaman and Nicobar Islands

Capital: Sri Vijaya Puram (Port Blair). Economy: tourism, fisheries, coconut and government services. Businesses registered in Andaman and Nicobar Islands carry GST state code 35 in their GSTIN, and intra-state sales are billed as CGST + SGST while sales to other states are billed as IGST.

Custom E-Commerce Development in Chandigarh

Capital: Chandigarh. Economy: government, IT parks, education and a high-income retail market in the tricity. Businesses registered in Chandigarh carry GST state code 04 in their GSTIN, and intra-state sales are billed as CGST + SGST while sales to other states are billed as IGST.

Custom E-Commerce Development in Dadra and Nagar Haveli and Daman and Diu

Capital: Daman. Economy: manufacturing (plastics, textiles, chemicals), tourism and trading. Businesses registered in Dadra and Nagar Haveli and Daman and Diu carry GST state code 26 in their GSTIN, and intra-state sales are billed as CGST + SGST while sales to other states are billed as IGST.

Custom E-Commerce Development in Ladakh

Capital: Leh. Economy: tourism, apricots and sea buckthorn, pashmina and solar energy. Businesses registered in Ladakh carry GST state code 38 in their GSTIN, and intra-state sales are billed as CGST + SGST while sales to other states are billed as IGST.

Custom E-Commerce Development in Lakshadweep

Capital: Kavaratti. Economy: fisheries (tuna), coconut and coir, and island tourism. Businesses registered in Lakshadweep carry GST state code 31 in their GSTIN, and intra-state sales are billed as CGST + SGST while sales to other states are billed as IGST.

Custom E-Commerce Development in Puducherry

Capital: Puducherry. Economy: tourism, light manufacturing, textiles and education. Businesses registered in Puducherry carry GST state code 34 in their GSTIN, and intra-state sales are billed as CGST + SGST while sales to other states are billed as IGST.

How we work

How a custom e-commerce platform project runs with N&T Software for India

Every custom e-commerce platform we build follows the same staged, quality-gated process, shaped around your requirements. You see progress every day, review it every week and give written sign-off at each milestone before any payment is due.

  1. 01

    Discover

    ✓ Scope signed off

  2. 02

    Design

    ✓ Architecture OK

  3. 03

    Build

    ✓ Sprint accepted

  4. 04

    Secure & Test

    ✓ UAT signed off

  5. 05

    Deploy

    ✓ Cutover done

  6. 06

    Handover

    ✓ Code handed over

  7. 07

    Support

    ✓ SLA active

Pay only for work you have accepted

There is no standard price list, because every custom e-commerce platform is quoted to your requirements and budget. What is standard is how you pay: a small advance, then milestones released only after written acceptance. An example:

Protected after launch — warranty and annual support for your custom e-commerce platform

Every project includes a free 90-day defect warranty. After that, the same team that built your custom e-commerce platform keeps it secure, updated and running on a fixed annual fee agreed up front — no open-ended hourly billing and no surprise invoices.

100% of the source code and IP is owned by you

For every custom e-commerce platform, upon full and final payment the complete source code and intellectual property are transferred to you — so you can host, maintain and enhance the system with any developer.

Read the full Custom E-Commerce Development delivery process — reporting, payment milestones, warranty, team and engagement models →

Custom E-Commerce Development in India — FAQs

Which parts of India do you build for?

the platform is not tied to one neighbourhood: delivery zones, pickup points and prices can be set for any part of India.

Which payment methods can my custom e-commerce platform accept in India?

We can integrate UPI (Google Pay, PhonePe, Paytm), RuPay, Visa and Mastercard cards, net banking, cash on delivery, EMI and cardless EMI and wallets and UPI AutoPay for subscriptions, subject to provider approval for your business category. Amounts are handled in Indian rupee.

What time zone and language will we work in for a India project?

India runs on UTC+5:30 (on the same clock as our team in India (IST)). We reply within 10 minutes around the clock, meet in your working hours and write storefront content in Hindi, English and and 20 other scheduled languages as well as English.

Do I own the source code of my custom e-commerce platform?

Yes. After full and final payment, 100% of the source code, design files, database schemas, deployment scripts and documentation are transferred to you, with no lock-in or forced subscription.

Is the platform compliant with GST and the DPDP Act?

We build the technical controls — GST invoices, e-commerce disclosures and DPDP consent — with the Digital Personal Data Protection Act 2023 and the DPDP Rules 2025 in mind. Final legal and tax positions should be confirmed with your adviser.

How much does a custom e-commerce platform cost in India?

There is no fixed package price: every NNT Mart custom e-commerce platform is quoted to your requirements and budget after a free requirements meeting and demo. Cost depends on catalogue size, integrations, payment and delivery rules, mobile apps and support. Payments are split into milestones, and 90% is released only after you accept working modules.

Do you provide support after launch for clients in India?

Every project includes a free 90-day defect warranty, followed by an optional fixed-fee annual support package with a dedicated developer, SLA-based fixes and a 24×7 helpdesk across three shifts.

Which couriers do you integrate for deliveries from India?

Common choices are Delhivery, Blue Dart, Shiprocket, DTDC, Xpressbees, Ecom Express and India Post. We can also route orders to your own riders, stores or warehouses and set rules by zone, weight or delivery slot.

Free demo in 24 hours

Plan your custom e-commerce platform in India

Tell us what you sell and how you take orders today. We reply within 10 minutes, meet you to understand your requirements, and share a working demo within 24 hours.

We reply within 10 minutes, 24×7. Your details are used only to respond to your enquiry — see our privacy policy.

Tell us what you sell. We will show you a working demo in 24 hours.

Free requirements meeting, a demo built on your use case and a proposal priced to your budget — with no obligation.

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