Insights
Techpuvi Notes.
Engineering, AI, and the work of building software that lasts.
Account Aggregator Integration for Fintech: The Developer's Playbook
AA is now mandatory infrastructure for Indian fintech. Here's the developer's view, architecture, sandbox onboarding, consent flow, FIU/FIP roles, and the gotchas no one warns you about.
Building HIPAA-Compliant Telehealth Platforms in India
Indian telehealth selling into US healthcare needs HIPAA. Here's the technical architecture, controls, BAAs, data residency, audit logs, that actually passes HIPAA.
UPI Integration in Your App: The 2026 Technical Guide
UPI is the rails of Indian payments. Here's what every developer needs to know about integrating UPI into a mobile or web app, flows, SDKs, edge cases, and the differences between collect, intent, and AutoPay.
ONDC Integration for Sellers: A Developer's Primer
ONDC is the open commerce network India is betting on. Here's what it actually is, how the buyer/seller architecture works, and what your engineering team needs to know before integrating.
DPDP Act for Developers: The Engineering Controls You Actually Need
The compliance checklist post covered policies. This one covers code. The actual functions, tables, APIs, and infrastructure you must build.
RBI Digital Lending Guidelines: What Your Software Must Comply With
The RBI's digital lending guidelines aren't legal trivia, they're architectural requirements. Here's what your software must implement, with concrete patterns.
SOC 2 Readiness for Indian SaaS: A Step-by-Step Guide
Indian SaaS founders are scrambling for SOC 2 to sell into the US. Here's what the engineering controls actually look like, encryption, IAM hygiene, logging, vendor management, and what to ship first.
We Benchmarked 5 LLMs on Indian Medical Record Extraction
Original benchmark: 5 frontier and open-source models extracting structured fields from real Indian medical records. Accuracy, cost, latency, and which model wins for what.
Multi-Tenant SaaS on Postgres: RLS vs Schema-per-Tenant
Two architectures, real benchmarks, and a decision framework for which one to pick. We've shipped both, here's when each wins.
How Much Does Mobile App Development Cost in India? (Real 2026 Numbers)
Honest ranges by app type, simple, mid, complex, and the variables that actually drive cost. Written for founders evaluating quotes, not for SEO.
ABDM Integration Explained: ABHA, HIE/CM, HFR, HPR for Developers
A developer's guide to the Ayushman Bharat Digital Mission stack, ABHA addresses, the Health Information Exchange and Consent Manager, the Health Facility and Healthcare Professional Registries, and how to integrate them safely.
How to Choose a Fintech App Development Partner in India (2026 Guide)
A checklist for evaluating fintech development partners in India, RBI experience, DPDP readiness, KYC depth, post-launch retainer model, code ownership, and the questions that separate real builders from agencies that pretend.
DPDP Act Compliance Checklist for Indian SaaS Companies
The DPDP Act is now in force. Here's the practical engineering checklist, consent flows, deletion APIs, DPO documentation, and breach notification, that Indian SaaS teams can actually ship.