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.

  1. Video · D2C How To Develop A D2C Product? Shopify
  2. A free, fill-in-the-blanks brief format you can strip down to the essentials a factory actually needs: dimensions, materials,... asana.com Template · D2C Product Brief Template Asana
  3. Founder-by-founder origin stories that repeatedly land on the same lesson: the first product was rough, shipped anyway, and got... npr.org Podcast · D2C How I Built This with Guy Raz Guy Raz / NPR
  4. A real Indian D2C founder's account of product decisions from the ground up, grounded in Indian sourcing and category... coralslub.com Article · D2C How to Build a D2C Brand: Lessons from Building Coral Slub Coral Slub
  5. Written by an Indian private-label manufacturer, so the product-development steps are grounded in what an Indian factory can... hcpwellness.in Article · D2C How to Start a D2C Brand in India HCP Wellness
  6. Addresses the online-seller angle that generic FSSAI guides skip: why selling online usually puts a brand in the Central... Legal4Sure Article · D2C FSSAI License For Ecommerce, Amazon, Flipkart & Online Food Sellers 2026 Legal4Sure
  7. Focused specifically on the Central License tier that most online food sellers land in, clearer than generic FSSAI overviews... nkgabc.com Article · D2C FSSAI Central License for Food Businesses | All-India Compliance nkgabc.com
  8. Useful if you're still single-state and offline-heavy, clarifies the middle State License tier and when you'd need to upgrade... nkgabc.com Article · D2C FSSAI State License for Food Businesses | Compliance in India nkgabc.com
  9. Written specifically with D2C brands in mind rather than restaurants/manufacturers, so the examples and edge cases... TheGSTCo Article · D2C FSSAI for D2C TheGSTCo
  10. 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
  11. 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)
  12. 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)
  13. 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
  14. 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
  15. 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
  16. 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
  17. 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
  18. 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
  19. 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
  20. 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
  21. 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
  22. 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
  23. 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
  24. 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

Show the next 24

The hubs

eChai Partner Brands The partnership →