Accelerating Digital Innovation for India’s Largest Bank

Overview

One of India’s largest banks faced growing constraints with its legacy KONY-based digital banking platform, leading to rising maintenance costs, complex upgrade cycles, and reliance on scarce specialized resources. These challenges impacted agility and delayed digital transformation efforts.

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One of India’s largest banks faced growing constraints with its legacy KONY-based digital banking platform, leading to rising maintenance costs, complex upgrade cycles, and reliance on scarce specialized resources. These challenges impacted agility and delayed digital transformation efforts.

Tech Mahindra partnered with the bank to modernize its digital ecosystem by enabling a strategic migration to Angular. With this migration in place, the bank simplified its technology stack, boosted development efficiency, and created a scalable foundation for faster innovation, enabling enhanced customer experience, improved responsiveness, and stronger alignment with evolving market demands.

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Business Challenge

The client is an Indian bank serving millions of users nationwide and is a major player in the financial services industry. Faced with limitations in its existing framework, the bank initiated a modernization of its mobile application platform. Key challenges included:

  • Dependency on a legacy KONY platform demanding frequent and complex upgrades
  • High licensing, maintenance, and support costs
  • Limited backward compatibility and flexibility
  • Shortage of skilled KONY developers and associated training gaps
  • Fragmented Android and iOS codebases
  • Slower time‑to‑market for new features and regulatory updates

Our Approach and Solution

We executed a modernization-first, risk-controlled transition. Through a phased migration approach, we reduced dependency on the legacy KONY platform while enabling continuous operations. Key features of our solution include:

Angular-Based Platform

Adopted Angular as the core framework to improve maintainability and scalability, and accelerate time to market.

Modernizing Mobile UI

Rebuilt the UI layer in Angular, enabling the reuse of the existing web codebase to reduce development efforts.

Backend Continuity

Retained existing backend services to avoid disruption while establishing a phased roadmap to microservices.

Coexistence of KONY and Angular

Enabled parallel operations of KONY and Angular during migration through validated POCs.

Infrastructure Reuse

Utilized existing infrastructure during transition, ensuring stability and controlled modernization.

Skill Alignment

Aligned the solution with existing developer skills, reducing training effort and accelerating adoption.

Business and Community Impact

  • Enhanced Maintainability: A unified codebase enabled seamless upgrades and reduced reliance on vendor-specific expertise.
  • Improved Performance: Improved application responsiveness and stability through optimized Angular architecture.
  • Business Agility: Enabled faster rollout of features and regulatory updates, with convergence across web and mobile platforms.
  • Cost Efficiency: Reduced licensing, support, and infrastructure costs post-migration.
  • Scalability: Aligned platform to support future digital initiatives and rapid feature expansion.
  • App Optimization: Achieved 60–70% reduction in app size, resulting in a lighter, faster, and more efficient application.