Explore · The library
Every resource founders actually use, in one library.
The essays, videos, podcasts, books and tools behind every answer across eChai's hubs, from starting up to go-to-market, D2C, founder money and AI, each with a note on why it is here.
What founders use most, ranked by how many answers lean on it.
- Press is one of the easiest excuses to relaunch that founders under-use, and this guide teaches you to treat it as ongoing... Y Combinator (YC Startup Library) Article · Starting Up Getting press for your startup Y Combinator In 4 answers
- This is the book that made outbound prospecting a repeatable discipline instead of a guessing game, built on the Salesforce.com... predictablerevenue.com Book · ~250 pages · Starting Up Predictable Revenue Aaron Ross and Marylou Tyler In 4 answers
- This guide breaks an ICP into demographic, psychographic, and position attributes, then walks through a real worked example,... Reforge Guides Article · 15 min read · Starting Up Define the ideal customer profile Reforge Guides In 4 answers
- Google's page on generating a review link or QR code from your profile, with where to use it: receipts, thank-you emails, the... support.google.com Article · Help page · Starting Up Create a Google link or QR code to request reviews Google In 4 answers
- Jonathan Stark's short book for consultants and freelancers on pricing by value instead of by the hour: why hourly billing caps... jonathanstark.com Book · Short book · Starting Up Hourly Billing Is Nuts Jonathan Stark In 4 answers
- DPIIT's current list of what recognition opens, updated for the Income-tax Act 2025: a three-year 100% tax exemption on profits... startupindia.gov.in Article · PDF playbook · Starting Up Startup Playbook: Exclusive Benefits for DPIIT-Recognised Startups (April 2026) Startup India (DPIIT) In 4 answers
- The Ministry of Labour's 21 November 2025 release bringing the four Labour Codes into force, with the before-and-after table:... pib.gov.in Article · Starting Up Government Makes the Four Labour Codes Effective Press Information Bureau In 4 answers
- The former Intel CEO's book on management as leverage, where OKRs began. It covers planning, one-to-ones, meetings and... penguinrandomhouse.com Book · Book · Starting Up High Output Management Andrew S. Grove In 4 answers
- A reference list broader than just CM1/CM2, useful once you've got the basics down and want to know what an actual CFO would... CFO Matrix Article · D2C D2C Unit Economics: 16 Metrics Every E-commerce Startup Should Know CFO Matrix In 4 answers
- A blunt, India-specific playbook on where ad spend actually leaks, useful because it ties creative fatigue and volume directly... Growwwtech Article · D2C Meta Ads for Indian D2C, Stop Burning Money Growwwtech In 4 answers
- A straightforward side-by-side of the Indian WhatsApp Business API providers (AiSensy, Interakt, WATI, Gupshup, and more) so... Zaptick Article · D2C 11 Best WhatsApp Marketing Tools & Software in India Zaptick In 4 answers
- The canonical India-facing starting point, lays out the 18+ marketplaces, the paperwork you need, and the fulfillment/payment... sell.amazon.in Article · D2C Export from India and Start Selling with Amazon Global Selling Amazon India In 4 answers
- The most concrete India-founder account of going global, Vahdam's Bala Sarda built a brand where cross-border is ~90% of... inc42.com Article · D2C Decoding D2C Brand Vahdam's 9-Point Global Expansion Playbook Inc42 In 4 answers
- GST registration is mandatory for Indian ecommerce sellers regardless of revenue, and your GSTIN needs to show up on your... indiafilings.com Article · D2C GST Registration for eCommerce Business India IndiaFilings In 4 answers
- One of the few pieces that actually maps Shopify, WooCommerce, Dukaan and Zoho Commerce against Indian founder stages -... goqpe.com Article · D2C Best E-commerce Platforms for D2C Brands in India (2026 Edition) QPe In 4 answers
- An India-first take on retention that names the specific levers Indian brands actually use - WhatsApp CRM, loyalty programs,... productgrowth.in Article · D2C D2C Retention Playbook: How India's Best Brands Win ProductGrowth.in In 4 answers
- A catalogue of the specific cons that trip up product founders, the golden-sample switch, fake certifications, price... cosmosourcing.com Article · D2C Common Supplier Scams and How to Avoid Sourcing Fraud Cosmo Sourcing In 4 answers
- Explains how showing the full landed price (product plus duty plus tax) at checkout, not just a converted product price,... shopify.com Article · D2C Better Global Buying Experiences With Duties & Import Taxes at Checkout Shopify In 4 answers
- A practitioner's honest read on where PMax actually delivers for ecommerce versus where founders overtrust the automation,... Store Growers Article · D2C Performance Max for Ecommerce: What Actually Works in 2026 Store Growers In 4 answers
- Frames Google spend as one piece of an Indian D2C brand's blended channel mix (with a suggested 25-30% allocation to... upGrowth Article · D2C D2C Performance Marketing in India: The 2026 Playbook upGrowth In 4 answers
- A concrete before/after case study, 60,000 sq ft warehouse, sub-48-hour fulfillment, 99.99% bin-level accuracy, that shows what... Increff Case Studies Article · D2C The Indian Garage Co.: Scaling New Heights in D2C Fashion with Increff Increff In 4 answers
- The most honest India-specific DIY walkthrough we found: it puts real numbers on what it takes (Rs 30,000-50,000 learning... Growwwtech Article · D2C DIY Meta Ads for D2C 2026: The Complete Setup Growwwtech In 4 answers
- The clearest explanation of why a physical, signed sample, not a spec sheet, is the real definition of 'correct' once... insight-quality.com Article · D2C What Is a Golden Sample in Manufacturing, and Why Are They Essential? Insight Quality In 4 answers
- Makes the direct case for treating the pre-production sample as your last checkpoint before a batch you can't easily undo. ninghowapparel.com Article · D2C The Importance of the PP Sample: Risk Control & Golden Sample Insights Ninghow Apparel In 4 answers
The hubs
Starting Up
Find an idea, validate it, build, and land your first customers.
GTM
Go-to-market, from breaking in to how the best teams do it.
D2C
Building a direct-to-consumer brand, India-first.
Wealth
Paying yourself, ESOPs, secondaries, and de-risking founder wealth.
How Founders Use AI
How founders actually put AI to work, mapped topic by topic.
Glossary
Plain-language definitions of the startup and VC terms you'll hit.
eChai Partner Brands
The partnership →