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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.

  1. A practical, operator-written guide to sourcing and evaluating early hires on limited resources - useful for the tactical 'how... hotjar.com Article · D2C Startup Hiring: Finding Your First Hires & Key Employees Hotjar In 2 answers
  2. Directly addresses the budget constraint most D2C founders face at this stage - how to compete for talent when you can't... fi.co Article · D2C How to Find the First Hires for Your Startup on a Budget First Round / Fi.co In 2 answers
  3. A well-known operator's actual tool-by-tool stack - Klaviyo for email, Gorgias for support, Smartrr for subscriptions, Okendo... 1800dtc.com Thread · D2C The Nik Sharma Stack Nik Sharma (via 1800DTC) In 2 answers
  4. Gorgias has a vested interest in the support layer, but this guide is genuinely useful as a plain-English map of how commerce... gorgias.com Article · D2C A User-Friendly Guide to Ecommerce Tech Stacks Gorgias In 2 answers
  5. The clearest plain-language breakdown of the 45-class system we found, with D2C-relevant examples (Class 3 cosmetics, Class 25... IncorpX Article · D2C 45 Trademark Classes in India: Choose the Right One IncorpX In 2 answers
  6. A tight, step-by-step availability-check guide that's easy to follow the first time you use the government search tool without... LegalWiz Article · D2C How to Check Trademark Availability in India: Step-by-Step Guide LegalWiz In 2 answers
  7. The cleanest plain-English starting point from the platform most Indian D2C brands actually run on. It nails the core idea -... shopify.com Article · D2C What Is Contribution Margin? Definition and Guide Shopify In 2 answers
  8. The best worked-example explainer for actually doing the math: Net Sales minus product cost, shipping, payment fees, fulfilment... storehero.ai Article · D2C Contribution Margin Formula for Ecommerce (With Real Examples) StoreHero In 2 answers
  9. Goes one level deeper than a formula: it rebuilds the contribution-margin income statement for a real D2C P&L, so you can... polaranalytics.com Article · D2C Contribution Margin Ratio, Per Unit & Income Statement: The Complete DTC Breakdown Polar Analytics In 2 answers
  10. An encyclopedia-style reference rather than a vendor's sales pitch, which makes it a more neutral place to learn the actual... Racklify Warehouse & 3PL Logistics Encyclopedia Article · D2C Choosing D2C Fulfillment Partners: The Right Partner and Setup Racklify In 2 answers
  11. Makes the India-specific case for 3PL over self-fulfillment, real estate cost, labour management, and pincode reach are... WareIQ Blog Article · D2C Why E-commerce and D2C Businesses Choose 3PL for Their Fulfilment Needs WareIQ In 2 answers
  12. A current shortlist of the actual India 3PL landscape a founder would be choosing between, useful as a starting point for... WareIQ Blog Article · D2C Top 10 3PL Warehousing Companies in India (2026 List) WareIQ In 2 answers
  13. Gupshup is one of Meta's largest India-focused BSPs and the most technical/flexible option for higher-volume senders, this... Gupshup Article · D2C The Ultimate Guide to WhatsApp Business API Gupshup In 2 answers
  14. The official source on how the WhatsApp Business Platform actually works underneath every BSP tool, worth understanding... Meta for Developers Article · D2C WhatsApp Cloud API: Get Started Meta In 2 answers
  15. A rare pricing comparison that actually breaks down BSP platform fees separately from Meta's per-conversation charges, which is... Codingclave Article · D2C WhatsApp API Pricing India 2026: Audited Costs From Rs 0/mo Codingclave In 2 answers
  16. A comprehensive, current D2C-specific guide covering setup through automation through compliance in one place, a good... Hawknest Article · D2C WhatsApp Marketing for D2C Brands: The Complete 2026 Guide Hawknest In 2 answers
  17. Makes the strongest ROI case for prioritising WhatsApp with concrete India performance figures, useful ammunition if you need... iMark Infotech Article · D2C WhatsApp Business Marketing in India: The Channel Driving 11x ROAS Most Brands Still Underuse iMark Infotech In 2 answers
  18. Written specifically for D2C sellers rather than generic taxpayers, it walks through the exact mistakes that block a first... ITRnGST Article · D2C The E-commerce & D2C GST Guide (2026): Registration, TCS & Refund Wins ITRnGST In 2 answers
  19. Shopify's own India tax documentation is the most direct answer for a founder building on Shopify specifically: what GST does... Shopify Help Center Article · D2C GST in India FAQ Shopify In 2 answers
  20. The one resource that goes past 'GST is mandatory' into the operational reality of quick commerce: separate GSTIN or APOB... Tax Garden Article · D2C GST and Compliance Guide for Blinkit, Swiggy Instamart, and Zepto Sellers (2026) Tax Garden In 2 answers
  21. The official onboarding document handed to every newly registered taxpayer, worth reading once end to end so you know exactly... GST Portal, Government of India Report · D2C Welcome Kit for New Taxpayers GST Portal, Government of India In 2 answers
  22. The global founder community version of the exact question in this brief: whether to formalise before revenue or wait, useful... Indie Hackers Thread · D2C You Don't Need an LLC... Yet. How and When to Form a Business Entity Indie Hackers In 2 answers
  23. This is the government's own field by field walkthrough of Part A and Part B of the registration form, the exact screens you... GST Portal (tutorial.gst.gov.in) Article · D2C Manual: Registration Application - Normal Taxpayer Goods and Services Tax Network (GSTN) In 2 answers
  24. The clearest explanation of the fork in the road: some applicants get simple OTP based Aadhaar authentication, others get... IndiaFilings Article · D2C Aadhaar and Biometric Authentication for GST Registration IndiaFilings In 2 answers

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