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. The government investment agency's overview of India's textile sector and its schemes: PM MITRA parks (Rs 4,445 crore for seven... investindia.gov.in Article · Sector page · Starting Up Textiles and apparel sector (Invest India) Invest India
  2. The statutory body under the Architects Act 1972, which restricts the title 'architect' to people registered with it and acts... coa.gov.in Article · Official site · Starting Up Council of Architecture Council of Architecture
  3. India's professional body for interior designers, with chapters across cities, events and membership that clients and builders... iiid.in Article · Official site · Starting Up Indian Institute of Interior Designers (IIID) IIID
  4. A law firm's summary of the January 2023 'Endorsement Know-hows' for influencers, issued under the Consumer Protection Act 2019... ksandk.com Article · Article · Starting Up Endorsement Know-hows: guidelines released by the Ministry of Consumer Affairs King Stubb & Kasiva
  5. The government knowledge portal's plain explanation of the disclosure rules for creators and influencers on social media. vikaspedia.in Article · Explainer · Starting Up Endorsements know-hows (Vikaspedia) Vikaspedia
  6. A plain guide to what a GST invoice must contain (invoice number and date, both GSTINs, place of supply, HSN or SAC code,... cleartax.in Article · ~15 min read · Starting Up GST Invoice: Format, Rules, Types and Mandatory Details ClearTax
  7. DPIIT's own screen-by-screen guide to applying for startup recognition on the National Single Window System: sign up, set up... startupindia.gov.in Article · PDF guide · Starting Up Startup DPIIT Recognition Application on NSWS: A Guide Startup India (DPIIT)
  8. The official FAQ on recognition, including that the certificate of recognition is typically issued within 2 working days of a... startupindia.gov.in Article · FAQ · Starting Up Startup India FAQs Startup India (DPIIT)
  9. Atlassian's guide to building a product roadmap: weigh ideas against customer feedback, company goals and effort, size the... atlassian.com Article · ~10 min read · Starting Up Product Roadmap Guide: What It Is and How to Create One Atlassian
  10. The constitutional provision that lets states levy professional tax and caps it at ₹2,500 per person a year, which is why every... constitutionofindia.net Article · Short read · Starting Up Article 276: Taxes on professions, trades, callings and employments Constitution of India
  11. A 2026 state-by-state guide: Maharashtra's PTRC and PTEC on MahaGST and its slabs, Karnataka's ₹25,000 a month exemption from... bajajfinserv.in Article · ~10 min read · Starting Up Professional Tax Login: State-Wise Portal Steps for Employers (2026) Bajaj Finserv
  12. Explains the two registrations (PTEC for the company's own tax, PTRC to deduct from employees), the documents to keep ready and... myndsolution.com Article · ~8 min read · Starting Up The Complete Guide to Professional Tax Registration for Employers MYND Integrated Solutions
  13. EPFO's page on Shram Suvidha, the single portal for online registration and returns under labour laws, which assigns each... epfo.gov.in Article · Short read · Starting Up EPFO and the Shram Suvidha Portal EPFO
  14. EPFO's FAQ, including that an establishment with fewer than 20 employees can join EPF voluntarily if the employer and a... epfo.gov.in Article · FAQ · Starting Up EPFO FAQs EPFO
  15. A service page that explains when PF registration becomes compulsory (20 or more employees, within 30 days of reaching the... indiafilings.com Article · ~10 min read · Starting Up PF Registration Online: EPF Registration for Employers IndiaFilings
  16. Report of Eximius Ventures' March 2026 study with 1Lattice, which found pre-seed has grown nearly 3X since 2020 and was the... tribuneindia.com Article · ~4 min read · Starting Up Eximius Ventures launches India's Pre-seed Startup Landscape 2026 The Tribune / ANI
  17. A 2026 guide that separates the free seller registration from the costs that come later (certifications, testing, documents and... tender18.com Article · ~10 min read · Starting Up GeM Registration Fees, Charges and Documents Required in 2026 Tender18
  18. The current contribution rates: 3.25% of wages from the employer and 0.75% from the employee, with employees on a daily average... esic.gov.in Article · Short read · Starting Up ESIC Contribution ESIC
  19. ESIC's step-by-step help file with screenshots: registration is fully online and real-time, generates the code number on... esic.gov.in Article · PDF guide · Starting Up ESIC Employer Registration Help File ESIC
  20. A service page listing who is covered, the documents, and that an employer must register within 15 days of crossing the... indiafilings.com Article · ~10 min read · Starting Up ESI Registration Online IndiaFilings
  21. GSTN's FAQ on GSTR-3B: due on the 20th for monthly filers and the 22nd or 24th after the quarter for quarterly filers by state,... gst.gov.in Article · FAQ · Starting Up FAQs: Form GSTR-3B GSTN
  22. The official screen-by-screen manual for preparing, paying and filing GSTR-3B, including how liabilities flow in from GSTR-1... gst.gov.in Article · Step-by-step manual · Starting Up Manual: Creation, Saving, Payment of Taxes and Filing of Form GSTR-3B GSTN
  23. GSTN's FAQ on GSTR-1: due on the 11th for monthly filers and the 13th after the quarter under QRMP, which is open to turnover... gst.gov.in Article · FAQ · Starting Up FAQs: Form GSTR-1 GSTN
  24. A current guide to GSTR-3B covering the changes since July 2025: sales tables locked to GSTR-1, corrections through GSTR-1A, a... cleartax.in Article · ~15 min read · Starting Up GSTR-3B: Due Date, Late Fee, Format, Return Filing ClearTax

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