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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. 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
  2. The official government reference for BIS-regulated product recalls, the primary source for founders whose products fall under... BIS Tool · D2C Public Alert for Product Recall on Account of Non-Conformity of Product Bureau of Indian Standards
  3. A free, structured video course that takes you from 'what is SEO' through keyword research, on-page and link building in a few... ahrefs.com Course · D2C SEO Course for Beginners Sam Oh / Ahrefs Academy
  4. A quick sanity-check tool for whether your courier or aggregator is billing you correctly, useful the first time you spot an... edesy.in Template · D2C Shipping Rate Calculator India 2026, Delhivery & Courier Charges edesy.in
  5. A recruitment agency built specifically around DTC marketing roles (media buyers, retention leads, creative) - a real option... constanthire.com Tool · D2C Marketing Recruitment for DTC Brands: Media Buyers, Retention, Creative Constant Hire
  6. A live D2C-specific job board and company directory for India - useful both to post roles and to see which peer brands are... wellfound.com Tool · D2C Best D2C Companies to Work for in India 2026 Wellfound
  7. A global recruitment firm's India-specific D2C job listings, giving a real-market sense of current roles, seniority levels and... michaelpage.co.in Tool · D2C D2C Jobs in India Michael Page
  8. A free, structured template covering speed, conversion and theme/app analysis in one place - turns 'audit your apps' from a... ajstehlingco.com Template · D2C Shopify Performance Audit Template (Free Download) AJ Stehling & Co.
  9. The budget-friendly, India-headquartered starting point for founders who don't yet need Unicommerce's marketplace depth but do... zoho.com Tool · D2C Zoho Inventory - Ecommerce Inventory Management Zoho
  10. An India-headquartered loyalty option worth a look specifically if you're already Zoho-native, since it ties loyalty data into... zoho.com Tool · D2C Zoho Thrive - Customer Loyalty Program Software Zoho
  11. Built specifically around a shared WhatsApp inbox for Indian D2C support teams, which is what a lot of founders actually need... delightchat.io Tool · D2C DelightChat - Omnichannel Customer Support & WhatsApp Marketing DelightChat
  12. A friendlier front-end over the same government data, useful if the official portal's interface trips you up, good for a quick... IndiaFilings Tool · D2C Online Trademark Search India | Check Brand Name Availability IndiaFilings
  13. A cloud-hosted WMS built for high-volume omnichannel fulfillment with unique-piece barcoding, relevant if you're evaluating... Increff Tool · D2C Increff WMS, Warehouse Management System Solution Increff
  14. A free way to sanity check any GSTIN, your own once issued, or a supplier's before you extend credit, without waiting on a CA. ClearTax Tool · D2C GST Number Search Tool - GSTIN Verification Online ClearTax
  15. A free, self-paced government training module that simulates the actual registration screens, useful if you would rather watch... GST Portal (tutorial.gst.gov.in) Course · D2C Applying for GST Registration (Computer Based Training) GSTN
  16. When your application stalls (a stuck ARN, an unresolved OTP, a portal error), this is where you raise a ticket yourself... selfservice.gstsystem.in Tool · D2C GST Self Service Grievance Redressal Portal GSTN
  17. Useful as a sanity check, not a requirement: if you decide you want paid help for one specific step, this is the government's... GST Portal (services.gst.gov.in) Tool · D2C Locate GST Practitioner (GSTP) GSTN
  18. The official portal's own reference tool, broken out by taxpayer category (normal taxpayer, non-resident, GST practitioner and... GST Portal (gst.gov.in) Tool · D2C GST Document Advisor: Documents Required for New Registration Application Goods and Services Tax Network (GSTN)
  19. Most D2C founders start out of a home or a relative's property rather than a formally rented office, and this is the single... ClearTax Template · D2C Consent Letter for GST Registration: Format and Requirements ClearTax
  20. The fastest way to solve the GST portal's tight 100 KB to 1 MB upload limits when a phone-scanned document comes out too large,... iLovePDF Tool · D2C Compress PDF online, same PDF quality less file size iLovePDF
  21. A quick sanity-check calculator for GST amounts, useful for pricing out what a 1 percent composition levy actually saves versus... Zoho Books Tool · D2C Free GST Calculator Zoho Books
  22. An interactive version of the checklist that generates the exact document list for your specific business constitution instead... TaxBizMantra Tool · D2C Free GST Registration Document Checklist Tool TaxBizMantra
  23. A single glance-able calendar to put your GSTR-1/GSTR-3B dates straight into your own calendar instead of hunting through... ClearTax Tool · D2C GST Calendar 2026-27: GST Due Dates, Filing Deadlines and Compliance ClearTax
  24. The rare resource that sequences the tasks in order instead of listing rules alphabetically, so you know what to do this week... CA in Bangalore Template · D2C GST Compliance Guide for First-Time GST Registrants: Month-by-Month Checklist CA in Bangalore

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