Scaling on India Stack: Lessons for GovTech

India's Digital Public Infrastructure (DPI) is a global case study. For PSUs and state governments building atop this stack, scalability is the primary engineering challenge. Systems must handle millions of concurrent requests during scheme rollouts.

Architectural Patterns for Scale

Monolithic architectures fail under the 'Internet Scale' load of India's population. Microservices architecture, combined with asynchronous processing queues (Kafka/RabbitMQ), is essential.

• Caching Strategy: Aggressive use of Redis for read-heavy citizen data.
• Database Sharding: Partitioning databases based on geography or user ID ranges.
• Rate Limiting: Protecting APIs from accidental DDoS during peak usage times.