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.

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

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

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

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

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