Insights
Techpuvi Notes.
Engineering, AI, and the work of building software that lasts.
ABHA-Based Patient Identity: A Developer's Integration Guide
ABHA is becoming the default patient identity in Indian healthcare. Here's the developer's view, how to integrate ABHA-based identity into your app, what the trade-offs are.
Personalization for Indian eCommerce: What Actually Lifts AOV
Most personalization features ship without measurable AOV impact. Here's what actually works for Indian eCommerce, and what to skip.
AI for Radiology in India: Current State and What to Build
AI radiology in India is moving from research to clinic-ready. Here's an honest snapshot, what's working, what's not, regulatory state, and what to actually build.
We Tested Every Indian Payment Gateway. Here's Our Honest Take.
Razorpay vs Cashfree vs PayU vs Stripe India vs PhonePe Business, tested across UPI conversion, refund speed, dispute handling, and developer experience.
Building for Bharat: What We Learned Shipping to Tier-2 India Users
Tier-2 and tier-3 India is a different operating environment than tier-1. Network, language, payment, UX patterns, what changes, and how to build for it.
RERA Compliance in Software: Disclosure Tracking and Escrow Integration
RERA reshaped Indian real estate. Software supporting RERA workflows has specific compliance requirements. Here's what they are.
STQC and CERT-In Audits: What Your Platform Must Pass
STQC and CERT-In audits are the gates for government and regulated digital services. Here's what they evaluate, how to prepare, and what to fix before they arrive.
Neobanking Infrastructure in India: BaaS Providers Compared
Building a neobank in India means partnering with a regulated bank via BaaS. Here's an honest comparison of the major players, what they enable, what they don't, and how to choose.
The Post-Launch SaaS Checklist: 30 Things Most Teams Skip
You launched. Now the real work begins. Here are 30 things SaaS teams skip post-launch that come back to haunt them, and what to do instead.
Fraud Detection Patterns in Indian Fintech: 7 We've Shipped
Seven concrete fraud patterns we've built across lending, payments, and KYC products in India, what each looks like, what we use to catch it, and what the eval rubric is.
Hospital Management System (HMS): Build vs Buy in 2026
Should your hospital chain build its own HMS or buy one? Here's the framework for deciding, what build means, what buy means, and where each one fails.
Building a UPI-First Lending App: Architecture from KYC to Disbursal
A complete architecture walkthrough for a UPI-first lending app, KYC, underwriting, disbursal, repayment, recovery. Designed for India's regulatory realities.
GST Integration for SaaS: A Complete Developer Guide
Indian SaaS invoicing has its own rules. Here's the developer's guide to GST integration, GSTIN validation, e-invoicing, IRN, B2B vs B2C, and reverse charge.
Headless Commerce: Shopify Hydrogen vs Next.js Commerce vs Custom
Three architectures for modern commerce, compared by where they win. Real trade-offs, not marketing pitches.
How We Keep Kubernetes Costs Under ₹50K/Month for Early-Stage SaaS
Kubernetes doesn't have to be expensive. Here's the stack and practices we use to keep production K8s costs under ₹50K monthly for early-stage Indian SaaS.
Direct Booking Systems That Beat OTAs on Conversion
Hotels lose 15-25% margin to OTAs. Direct booking is the antidote, if your direct site converts. Here's what actually moves the conversion needle.
Fantasy Sports Platforms in India: Regulatory and Technical Primer
Fantasy sports in India sits at a unique regulatory + technical intersection. Here's the primer, state-by-state legal landscape, technical architecture, and how to build.
Building a TMS (Transportation Management System) from Scratch: Architecture Decisions
A TMS is a core operational system. Building one from scratch is non-trivial. Here's the architecture walkthrough, modules, integrations, data model, scaling considerations.
B2B SaaS Pricing for Indian Companies Selling Globally
Indian SaaS selling to global customers face a pricing puzzle. Here's how to think about it, currency, willingness to pay, freemium choices, and the patterns that work.
ERP Modernization Roadmap: SAP/Oracle to a Modern Stack
Legacy ERP is the operating system of most large manufacturers. Modernizing without disrupting operations is the real challenge. Here's the realistic roadmap.
GIGW 3.0 Compliance for Citizen Portals: A Developer's Checklist
GIGW 3.0 is the design and accessibility standard for Indian government websites. Here's the developer's compliance checklist, what to implement, how to test, how to evidence.
Sale-Day Scaling: How We Handle 100x Traffic Spikes
Sale days, Big Billion, BBD, GOSF, break unprepared eCommerce platforms. Here's the architecture and operational playbook we use to handle 100x normal traffic without melting.
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.