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.
- A state-by-state overview of the shop and establishment licence: it is needed within 30 days of starting business, goes by... cashfree.com Article · Starting Up Shop and Establishment Act Registration in India: License, Process and Fees (2026) Cashfree Payments
- The official manual for the e-invoice portal: registering, generating and cancelling IRNs, and bulk generation. einvoice1.gst.gov.in Article · Starting Up E-Invoice System: User Manual for Taxpayers National Informatics Centre
- The Finance Ministry's 3 September 2025 release on GST 2.0: two main rates, 18% standard and 5% merit, a 40% rate for a few... pib.gov.in Article · Starting Up Recommendations of the 56th Meeting of the GST Council Press Information Bureau
- A current rate list under GST 2.0, with which goods and services moved to 5% and 18% from 22 September 2025. cleartax.in Article · Starting Up GST Rates 2026: Slabs under GST 2.0 ClearTax
- A current rate table for 2026-27 that notes all TDS provisions now sit in section 393 of the Income-tax Act 2025, with... cleartax.in Article · Starting Up TDS Rate Chart for FY 2026-27 ClearTax
- An explainer of how TDS works for a payer: deposit by the 7th of the following month and quarterly statements due 31 July, 31... cleartax.in Article · Starting Up TDS: What is Tax Deducted at Source ClearTax
- A step-by-step walk through the online and offline TAN application, useful for the screens; its form numbers and penalty refer... cleartax.in Article · Starting Up How to Get a TAN Number ClearTax
- The Ministry of MSME's own note on what Udyam registration gives an enterprise, in English and 22 other Indian languages. udyamregistration.gov.in Article · Starting Up Benefits of taking Udyam Registration Office of DC (MSME)
- DPIIT's own report on Gujarat, ranked a Best Performer: the Scheme for Assistance to Startups/Innovation under the Gujarat... startupindia.gov.in Article · Starting Up States' Startup Ecosystem Ranking, 5th edition: Gujarat state report Startup India (DPIIT)
- A plain explainer of who can apply to the Gujarat scheme through a nodal institute such as GUSEC: a startup registered in... startupgrantsindia.com Article · Starting Up Startup Gujarat Scheme through GUSEC (StartupGrantsIndia) StartupGrantsIndia
- The Gujarat scheme's assistance listed item by item: sustenance allowance, seed support up to Rs 30 lakh, accelerator... taxguru.in Article · Starting Up Subsidies for Startups in Gujarat TaxGuru
- A June 2026 report on Gujarat's proposed Industrial Policy 2026 and what it would change for startups. english.gujaratsamachar.com Article · Starting Up Industrial policy 2026: Gujarat announces sweeping incentives for industry and startups Gujarat Samachar
- The Patent Office's statement of what can be patented: an invention that is novel, has an inventive step, is capable of... ipindia.gov.in Article · Starting Up Basics of Patents (IP India) Office of the CGPDTM
- The statutory patent fee schedule, with a column for natural persons, startups, small entities and educational institutions and... ipindia.gov.in Article · Starting Up The First Schedule: patent fees (IP India) Office of the CGPDTM
- The Patent Office's own description of filing: Form 1 with Form 2 as a provisional or complete specification, the complete... ipindia.gov.in Article · Starting Up Patents: Filing Process (IP India) Office of the CGPDTM
- A guide to when each patent fee falls due, including the request for examination deadline cut to 31 months for applications... intepat.com Article · Starting Up Patent Cost in India (2026): Official Fees and Charges Intepat
- MeitY's November 2025 release on the notified DPDP Rules: an 18-month phased timeline and standalone, clear consent notices... pib.gov.in Article · Starting Up Government notifies DPDP Rules to empower citizens and protect privacy Press Information Bureau
- The Ministry of Consumer Affairs' release on the e-commerce rules: what every e-commerce entity must show before purchase and... pib.gov.in Article · Starting Up Consumer Protection (E-Commerce) Rules, 2020 Press Information Bureau
- Atlassian's guide to a lean PRD: goals, assumptions, user stories, design, and what is out of scope, written with the team... atlassian.com Article · Starting Up Product requirements documents (Atlassian) Atlassian
- The scheme's own FAQ, which sets out what a startup could get through an incubator: up to Rs 20 lakh as a grant for proof of... seedfund.startupindia.gov.in Article · FAQ page · Starting Up Startup India Seed Fund Scheme: FAQs DPIIT, Government of India
- The scheme document for Fund of Funds 2.0, a Rs 10,000 crore corpus that SIDBI puts into SEBI-registered Alternative Investment... startupindia.gov.in Article · Scheme document (PDF) · Starting Up Startup India Fund of Funds 2.0 Scheme DPIIT, Government of India
- Sets out the three margins with their formulas (gross profit margin, operating profit margin and net profit margin, each as... corporatefinanceinstitute.com Article · ~10 min read · Starting Up Profit Margin: Definition, Formula, Types and Examples Corporate Finance Institute
- Explains the ROI formula, works an example, shows how to annualise ROI so investments of different lengths compare fairly, and... corporatefinanceinstitute.com Article · ~10 min read · Starting Up Return on Investment: Formula, Meaning, and How to Calculate It Corporate Finance Institute
- A product seller's guide to gross, operating and net profit margin with the formula for each and ways to raise them, linked to... shopify.com Article · ~12 min read · Starting Up Profit Margin: How to Calculate It and Raise It Shopify
The hubs
Starting Up
Find an idea, validate it, build, and land your first customers.
GTM
Go-to-market, from breaking in to how the best teams do it.
D2C
Building a direct-to-consumer brand, India-first.
Wealth
Paying yourself, ESOPs, secondaries, and de-risking founder wealth.
How Founders Use AI
How founders actually put AI to work, mapped topic by topic.
Glossary
Plain-language definitions of the startup and VC terms you'll hit.
eChai Partner Brands
The partnership →