API Integration Services Mumbai — Connect Business Systems 2026

API Integration Services Mumbai — Connect Business Systems 2026

The average Mumbai mid-sized business uses 8-12 software systems: Tally for accounting, a separate HRMS for payroll, a CRM for sales, a payment gateway for collections, WhatsApp Business for communication, the GST portal for compliance, the EPFO portal for PF, and possibly an e-commerce platform. None of these talk to each other. The result: data is manually re-entered between systems, errors compound, and the accounts team spends 40% of their time on data entry rather than analysis. API integrations connect these systems and automate the flow.

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Common Integration Needs for Mumbai Businesses

NBFC / Financial Services
- LMS → NACH (NPCI): mandate registration auto-triggered on loan sanction
- LMS → Credit Bureau (CIBIL/Experian): credit check auto-triggered during application
- LMS → CIMS (RBI): regulatory data auto-submitted monthly
- LMS → WhatsApp: EMI reminders and disbursement notifications auto-sent
- LMS → eSign/Aadhaar: agreement signed digitally on sanction

Accounting / ERP
- Accounting → GST Portal (GSTN API): GSTR-1 auto-filed from accounting data
- Accounting → e-Invoice Portal (IRP): IRN generated real-time on invoice creation
- Accounting → Bank: bank statement auto-imported for reconciliation
- ERP → HRMS: salary expense journal auto-posted to accounting
- ERP → Inventory: sales invoice triggers stock reduction

E-Commerce
- Shopify/WooCommerce → Razorpay: payment confirmation → order status update
- Shopify → Shiprocket: order placed → shipment auto-created
- Shopify → WhatsApp: order confirmation and tracking via WABA
- Shopify → Tally: sales data synced to accounting daily
- Shopify → GSTN: B2B invoices pushed to GST portal

HRMS / Payroll
- HRMS → EPFO Portal: ECR file auto-generated and ready for upload
- HRMS → Bank: salary transfer file auto-generated
- HRMS → WhatsApp: payslip delivered via WhatsApp on salary day
- Biometric → HRMS: attendance data synced from fingerprint device
- HRMS → TDS Portal: Form 24Q data auto-prepared

CRM / Marketing
- Website Form → CRM: lead captured from website auto-created in CRM
- CRM → WhatsApp: welcome message auto-sent on lead capture
- CRM → Email: drip email sequence triggered on lead stage
- Google Ads → CRM: ad conversion tracked, lead attributed to campaign

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Types of API Integration

REST API Integration
Most modern Mumbai business software (Razorpay, Shiprocket, Zoho CRM, Interakt) exposes REST APIs. MICS builds integrations using:
- Webhook receivers: real-time event-driven integration
- Scheduled polling: batch sync at defined intervals
- Bidirectional sync: data flows both directions between systems

File-Based Integration
For legacy systems (Tally, older ERPs) that don't have APIs:
- CSV/Excel export from source system
- Automated import to target system
- Transform and validate data during transfer

Database Integration
Direct database-to-database sync for high-volume, real-time requirements:
- Change Data Capture (CDC): detect and sync only changed records
- ETL pipeline: extract, transform, load between databases

Middleware / iPaaS
For complex multi-system integrations:
- Zapier/Make: for simple, no-code integrations between common tools
- Custom middleware: MICS-built integration layer for complex business logic

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Mumbai Government API Integrations

MICS has built integrations with key Indian government APIs:
- GSTN API: GSTR-1 filing, e-invoice IRN generation, e-way bill
- EPFO API: ECR submission, UAN-based employee data
- NPCI NACH API: mandate registration, debit execution
- CIBIL API: real-time credit score check
- Aadhaar API: OTP-based eKYC verification
- DigiLocker API: document retrieval with user consent
- Account Aggregator API: bank statement data with user consent
- IRP (e-Invoice): IRN generation and cancellation

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Integration Project Process

1. Discovery: map all systems, data flows, and integration requirements
2. Design: API documentation review, data mapping, error handling design
3. Development: build integration with error handling, retry logic, logging
4. Testing: test happy path, error cases, volume testing
5. Deployment: gradual rollout, monitor for errors
6. Monitoring: alerts for integration failures, data quality checks

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Pricing for Mumbai Integration Projects

| Integration Type | Cost |
|---|---|
| Simple 2-system integration | Rs. 30,000-60,000 |
| Complex integration (3-5 systems) | Rs. 80,000-1,50,000 |
| Government API integration (GSTN, EPFO) | Rs. 40,000-80,000 |
| Account Aggregator integration | Rs. 60,000-1,00,000 |
| Full ecosystem integration (5+ systems) | Rs. 1,50,000-3,00,000 |
| Integration maintenance | Rs. 10,000-20,000/month |

Free integration assessment for Mumbai businesses: +91 9355273535 | admin@mics.asia