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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 process breakdown for domestic manufacturing specifically, timeline, site inspection, and the five-year retention... Artixio Article · D2C CDSCO Manufacturing License for Cosmetics in India Artixio
  2. The official CRS portal itself, the place to check if your specific electronic product SKU is on the mandatory list before you... crsbis.in Tool · D2C Compulsory Registration Scheme (CRS) Bureau of Indian Standards (BIS)
  3. BIS's own explanation of the Scheme II registration route, useful to cross-check against a consultant's summary since the exact... bis.gov.in Tool · D2C BIS CRS (Scheme II) Bureau of Indian Standards (BIS)
  4. The government's own page on the Act itself, the source to cite or check against when a labeling rule is disputed or a... consumeraffairs.gov.in Tool · D2C The Legal Metrology Act Department of Consumer Affairs, Government of India
  5. The clearest checklist-style breakdown of everything a converting PDP needs, top to bottom - use it as a literal audit against... cartylabs.com Article · D2C Shopify Product Page Best Practices: 17 PDP Elements for 2026 CartyLabs
  6. The most practical benefits-over-features primer for founders writing their own copy - concrete techniques (sensory language,... shopify.com Article · D2C How to Write a Product Description That Sells (2026) Shopify
  7. Copyhackers built its name on conversion copywriting for exactly this problem - pages that describe versus pages that sell -... copyhackers.com Course · D2C Copywriting Courses - Emails, Ads and Pages That Convert Copyhackers
  8. The foundational text on why some copy sells and some just sits there - research-driven positioning and headline discipline... amazon.com Book · D2C Ogilvy on Advertising David Ogilvy
  9. A rigorous, research-based look at how shoppers actually use (and abandon) size charts - the UX discipline behind why 'just add... nngroup.com Article · D2C Size Guides and Product Measurements for International Shoppers Nielsen Norman Group
  10. The best India-specific archive of real brand and digital-product teardowns - close-reads of how Indian D2C brands actually... thehardcopy.co Newsletter · D2C The Hard Copy - Original Case Studies on Indian Brand and Product Design The Hard Copy
  11. A free, fill-in-the-blanks worksheet for founders who freeze up staring at a blank description field - a fast scaffold to get... madeurban.com Template · D2C Free Product Description Template & Sample Made Urban
  12. Shopify's own India-market edition of this guide, written for the exact sizing chaos Indian fashion founders deal with - no... shopify.com Article · D2C Sizing Charts: How to Make a Size Chart for Your Retail Business (2026) Shopify India
  13. An AI size-recommendation widget built specifically for apparel/footwear Shopify stores - the practical next step once a static... measmerize.com Tool · D2C Shopify Size Advisor & Fit Finder App for Fashion Stores Measmerize
  14. The canonical starting point, this is where you actually raise your hand. It's the horse's-mouth reference for the document... Blinkit Article · D2C Sell on Blinkit, Official Seller Onboarding Portal Blinkit
  15. Zepto actively courts D2C brands to diversify beyond mass FMCG, so this portal is the most direct route in. Go here first if... Zepto Article · D2C Zepto for Brands, Partner Onboarding Zepto
  16. The official entry point for Instamart, which runs a curated onboarding model rather than an open marketplace. Useful to... Swiggy Instamart Article · D2C Swiggy Instamart, Brand Partner Page Swiggy
  17. A solid strategic frame on where q-comm fits in a D2C brand's channel mix, including how brands use enablers to defend delivery... Inc42 Article · D2C Matter of Minutes: How D2C Brands Can Win the Quick Commerce Game Inc42
  18. Explains why ads have gone from optional to near-mandatory on q-comm, the platforms now run thousand-crore ad businesses, which... Inc42 Article · D2C Quick Commerce Turns On The Ad Tap Inc42
  19. Concrete data on why brands shift budget to q-comm, higher ROAS and conversion than Meta/Google against high-intent shoppers,... Inc42 Article · D2C Blinkit, Zepto, Instamart Turn Into D2C Ad Hotspots In Festive Season Rush Inc42
  20. Frames q-comm as retail media, not just logistics, shoppers arrive in buying mode, so sponsored placement converts harder than... Inc42 Article · D2C How Quick Commerce Is Turning Into A Visibility Engine For Retail & D2C Brands Inc42
  21. Good macro grounding on how fast the channel scaled and how the platforms themselves are chasing profitability, context that... YourStory Article · D2C In 2024, Quick Commerce Boomed, Players Now Eye Profitability YourStory
  22. Video · D2C How to Sell on Zepto/Blinkit: Connecting With the Category Team for Fast Approval YouTube (D2C practitioner)
  23. A structured, step-by-step playbook rather than a list of horror stories, the closest thing to a checklist you can actually... Impressico Digital Article · D2C Crisis Management for Brands: A Playbook for Handling Online PR Crises Impressico Digital
  24. A round-up of real, recent crisis situations across brands, useful for pattern-matching your own situation against what's... Media Minefield Article · D2C Top Crisis Communication Situations of 2025 Media Minefield

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